test(aws-lambda-python): remove hard-coded references to @aws-cdk/aws…

…-lambda (aws#15994)

Remove the hard coded reference to the @aws-cdk/aws-lambda packages from the
test, which should fix the issue that prevent building the package as an alpha module in v2.

This was previously done in aws#15921, but I missed these entries in the tests.

related aws#15586

----

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

packages/@aws-cdk/aws-lambda-python/test/function.test.ts

@@ -48,7 +48,7 @@ test('PythonFunction with defaults', () => {
   });
 
   expect(bundle).toHaveBeenCalledWith(expect.objectContaining({
-    entry: expect.stringMatching(/@aws-cdk\/aws-lambda-python\/test\/lambda-handler$/),
+    entry: expect.stringMatching(/aws-lambda-python\/test\/lambda-handler$/),
     outputPathSuffix: '.',
   }));
 
@@ -65,7 +65,7 @@ test('PythonFunction with index in a subdirectory', () => {
   });
 
   expect(bundle).toHaveBeenCalledWith(expect.objectContaining({
-    entry: expect.stringMatching(/@aws-cdk\/aws-lambda-python\/test\/lambda-handler-sub$/),
+    entry: expect.stringMatching(/aws-lambda-python\/test\/lambda-handler-sub$/),
     outputPathSuffix: '.',
   }));
 
@@ -142,4 +142,4 @@ test('allows specifying hash type', () => {
       S3Key: 'MY_CUSTOM_HASH',
     },
   });
-});
+});