Add main to main-vs-deps flow (#78798)

* Create branch-merge2.jsonc

* Update main-merge.yml

* Rename branch-merge2.jsonc to branch-merge-2.jsonc

* Update PublishData.json

* Update and rename branch-merge.jsonc to main-to-main-vs-deps-branch-merge.jsonc

* feedbacl

* make clear main is for validation

Author: akhera99

.github/workflows/main-merge.yml

@@ -21,5 +21,6 @@ jobs:
     if: github.repository == 'dotnet/roslyn'
     uses: dotnet/arcade/.github/workflows/inter-branch-merge-base.yml@main
     with:
-      configuration_file_path: 'eng/config/branch-merge.jsonc'
+      configuration_file_path: 'eng/config/main-to-main-vs-deps-branch-merge.jsonc'
       configuration_file_branch: ${{ inputs.configuration_file_branch || 'main' }}
+

eng/config/PublishData.json

@@ -176,6 +176,15 @@
       "insertionCreateDraftPR": false
     },
     "main": {
+      "nugetKind": [
+        "Shipping",
+        "NonShipping"
+      ],
+      "vsBranch": "main",
+      "insertionCreateDraftPR": true,
+      "insertionTitlePrefix": "[Validation]"
+    },
+    "main-vs-deps": {
       "nugetKind": [
         "Shipping",
         "NonShipping"

eng/config/branch-merge.jsonc

@@ -0,0 +1,10 @@
+// Used by .github/workflows/main-merge.yml
+{
+    "merge-flow-configurations": {
+        // Merge any main changes to main-vs-deps.
+        "main": {
+            "MergeToBranch": "main-vs-deps",
+            "ExtraSwitches": "-QuietComments"
+        }
+    }
+}