fix(lambda): function version ignores layer version changes (#20150)

Fixes #19098.

This introduces two bug fixes that are hidden behind a feature flag to preserve the current hash:

- lambda layer order is ignored by the hash now 
- lambda layer version is included in the hash (along with other lambda layer attributes)

I also added a few more tests around this area to confirm the current behavior which should help demonstrate what the feature flag will change.

----

### All Submissions:

* [x] Have you followed the guidelines in our [Contributing guide?](https://github.com/aws/aws-cdk/blob/master/CONTRIBUTING.md)

### Adding new Unconventional Dependencies:

* [ ] This PR adds new unconventional dependencies following the process described [here](https://github.com/aws/aws-cdk/blob/master/CONTRIBUTING.md/#adding-new-unconventional-dependencies)

### New Features

* [ ] Have you added the new feature to an [integration test](https://github.com/aws/aws-cdk/blob/master/INTEGRATION_TESTS.md)?
	* [ ] Did you use `yarn integ` to deploy the infrastructure and generate the snapshot (i.e. `yarn integ` without `--dry-run`)?

*By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license*

Author: kaizencc

packages/@aws-cdk/aws-cloudfront/test/distribution-lambda.integ.snapshot/cdk.out

@@ -1 +1 @@
-{"version":"17.0.0"}
+{"version":"20.0.0"}

packages/@aws-cdk/aws-cloudfront/test/distribution-lambda.integ.snapshot/integ-distribution-lambda.template.json

@@ -53,7 +53,7 @@
     "LambdaServiceRoleA8ED4D3B"
    ]
   },
-  "LambdaCurrentVersionDF706F6A9a632a294ae3a9cd4d550f1c4e26619d": {
+  "LambdaCurrentVersionDF706F6A1ee13d0fa54e9f5621e8c7b616fc53fc": {
    "Type": "AWS::Lambda::Version",
    "Properties": {
     "FunctionName": {
@@ -72,7 +72,7 @@
        {
         "EventType": "origin-request",
         "LambdaFunctionARN": {
-         "Ref": "LambdaCurrentVersionDF706F6A9a632a294ae3a9cd4d550f1c4e26619d"
+         "Ref": "LambdaCurrentVersionDF706F6A1ee13d0fa54e9f5621e8c7b616fc53fc"
         }
        }
       ],

packages/@aws-cdk/aws-cloudfront/test/distribution-lambda.integ.snapshot/integ.json

@@ -1,7 +1,7 @@
 {
-  "version": "18.0.0",
+  "version": "20.0.0",
   "testCases": {
-    "aws-cloudfront/test/integ.distribution-lambda": {
+    "integ.distribution-lambda": {
       "stacks": [
         "integ-distribution-lambda"
       ],

packages/@aws-cdk/aws-cloudfront/test/distribution-lambda.integ.snapshot/manifest.json

@@ -1,5 +1,5 @@
 {
-  "version": "17.0.0",
+  "version": "20.0.0",
   "artifacts": {
     "Tree": {
       "type": "cdk:tree",
@@ -30,14 +30,23 @@
         "/integ-distribution-lambda/Lambda/CurrentVersion/Resource": [
           {
             "type": "aws:cdk:logicalId",
-            "data": "LambdaCurrentVersionDF706F6A9a632a294ae3a9cd4d550f1c4e26619d"
+            "data": "LambdaCurrentVersionDF706F6A1ee13d0fa54e9f5621e8c7b616fc53fc"
           }
         ],
         "/integ-distribution-lambda/Dist/Resource": [
           {
             "type": "aws:cdk:logicalId",
             "data": "DistB3B78991"
           }
+        ],
+        "LambdaCurrentVersionDF706F6A9a632a294ae3a9cd4d550f1c4e26619d": [
+          {
+            "type": "aws:cdk:logicalId",
+            "data": "LambdaCurrentVersionDF706F6A9a632a294ae3a9cd4d550f1c4e26619d",
+            "trace": [
+              "!!DESTRUCTIVE_CHANGES: WILL_DESTROY"
+            ]
+          }
         ]
       },
       "displayName": "integ-distribution-lambda"

packages/@aws-cdk/aws-cloudfront/test/distribution-lambda.integ.snapshot/tree.json

@@ -166,7 +166,7 @@
                         "lambdaFunctionAssociations": [
                           {
                             "lambdaFunctionArn": {
-                              "Ref": "LambdaCurrentVersionDF706F6A9a632a294ae3a9cd4d550f1c4e26619d"
+                              "Ref": "LambdaCurrentVersionDF706F6A1ee13d0fa54e9f5621e8c7b616fc53fc"
                             },
                             "eventType": "origin-request"
                           }

packages/@aws-cdk/aws-codedeploy/test/lambda/deployment-group.integ.snapshot/aws-cdk-codedeploy-lambda.template.json

@@ -85,7 +85,7 @@
     "HandlerServiceRoleFCDC14AE"
    ]
   },
-  "HandlerCurrentVersion93FB80BFb2a9ce598bf2730613c07e406cddb6b6": {
+  "HandlerCurrentVersion93FB80BFf2e6129c63154d1f37c0092df295ab51": {
    "Type": "AWS::Lambda::Version",
    "Properties": {
     "FunctionName": {
@@ -101,7 +101,7 @@
     },
     "FunctionVersion": {
      "Fn::GetAtt": [
-      "HandlerCurrentVersion93FB80BFb2a9ce598bf2730613c07e406cddb6b6",
+      "HandlerCurrentVersion93FB80BFf2e6129c63154d1f37c0092df295ab51",
       "Version"
      ]
     },

packages/@aws-cdk/aws-codedeploy/test/lambda/deployment-group.integ.snapshot/cdk.out

@@ -1 +1 @@
-{"version":"17.0.0"}
+{"version":"20.0.0"}

packages/@aws-cdk/aws-codedeploy/test/lambda/deployment-group.integ.snapshot/integ.json

@@ -1,7 +1,7 @@
 {
-  "version": "18.0.0",
+  "version": "20.0.0",
   "testCases": {
-    "aws-codedeploy/test/lambda/integ.deployment-group": {
+    "lambda/integ.deployment-group": {
       "stacks": [
         "aws-cdk-codedeploy-lambda"
       ],

packages/@aws-cdk/aws-codedeploy/test/lambda/deployment-group.integ.snapshot/manifest.json

@@ -1,5 +1,5 @@
 {
-  "version": "17.0.0",
+  "version": "20.0.0",
   "artifacts": {
     "Tree": {
       "type": "cdk:tree",
@@ -68,7 +68,7 @@
         "/aws-cdk-codedeploy-lambda/Handler/CurrentVersion/Resource": [
           {
             "type": "aws:cdk:logicalId",
-            "data": "HandlerCurrentVersion93FB80BFb2a9ce598bf2730613c07e406cddb6b6"
+            "data": "HandlerCurrentVersion93FB80BFf2e6129c63154d1f37c0092df295ab51"
           }
         ],
         "/aws-cdk-codedeploy-lambda/AssetParameters/edb7466707eb899fbaee22c1e67f9443e9edcc2eeda0b58d8448f7c4157746b3/S3Bucket": [
@@ -202,6 +202,15 @@
             "type": "aws:cdk:logicalId",
             "data": "ServiceprincipalMap"
           }
+        ],
+        "HandlerCurrentVersion93FB80BFb2a9ce598bf2730613c07e406cddb6b6": [
+          {
+            "type": "aws:cdk:logicalId",
+            "data": "HandlerCurrentVersion93FB80BFb2a9ce598bf2730613c07e406cddb6b6",
+            "trace": [
+              "!!DESTRUCTIVE_CHANGES: WILL_DESTROY"
+            ]
+          }
         ]
       },
       "displayName": "aws-cdk-codedeploy-lambda"

packages/@aws-cdk/aws-codedeploy/test/lambda/deployment-group.integ.snapshot/tree.json

@@ -313,7 +313,7 @@
                     },
                     "functionVersion": {
                       "Fn::GetAtt": [
-                        "HandlerCurrentVersion93FB80BFb2a9ce598bf2730613c07e406cddb6b6",
+                        "HandlerCurrentVersion93FB80BFf2e6129c63154d1f37c0092df295ab51",
                         "Version"
                       ]
                     },