auto increment main version on snap

Author: dibarbet

.github/workflows/branch-snap.yml

@@ -10,4 +10,18 @@ jobs:
   check-script:
     uses: dotnet/arcade/.github/workflows/inter-branch-merge-base.yml@main
     with:
-      configuration_file_path: '.config/snap-flow.json'
+      configuration_file_path: '.config/snap-flow.json'
+
+  create-pull-request:
+    if: github.ref == 'refs/heads/testing_action'
+    steps:
+      - name: Check out
+        uses: actions/checkout@v2
+      - name: Create version.json update PR
+        uses: peter-evans/create-pull-request@v4
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          commit-message: Update main version
+          title: 'Update main version'
+          branch: merge/update-main-version
+          # awk '/"version":/{split($2,a,/[.]/);$1="        \"version\":";$2=a[1]"."a[2]+1"$3"};1' version.json

version.json

@@ -3,7 +3,7 @@
 	"version": "2.39",
 	"publicReleaseRefSpec": [
 		"^refs/heads/release$",
-    "^refs/heads/prerelease$",
+    	"^refs/heads/prerelease$",
 		"^refs/heads/main$",
 		"^refs/heads/patch/.*$"
 	],