Add GitHub Actions workflow to notify on changes to versions.gradle, Fixes AB#1234567 (#2829)

This pull request introduces improvements to GitHub Actions workflows to
enhance automation and reliability around Gradle version changes and AB
ID extraction from pull requests. The main changes include the addition
of a new workflow for monitoring updates to the `gradle/versions.gradle`
file and a more robust method for extracting AB IDs from PR bodies.

**Workflow automation enhancements:**

* Added a new workflow `.github/workflows/gradle-versions-watcher.yml`
that triggers on changes to `gradle/versions.gradle` in the `dev` and
`release/**` branches, logging changes and commenting on pull requests
with a warning and documentation link.

**Improved AB ID extraction logic:**

* Updated the `validate-pr-ab-id.yml` workflow to sanitize the pull
request body by removing backticks and to extract the AB ID using the
pattern
`[[AB#1234567](https://identitydivision.visualstudio.com/fac9d424-53d2-45c0-91b5-ef6ba7a6bf26/_workitems/edit/1234567)]`
instead of just `#1234567`, improving reliability and accuracy.



[AB#3424644](https://identitydivision.visualstudio.com/fac9d424-53d2-45c0-91b5-ef6ba7a6bf26/_workitems/edit/3424644)

---------

Co-authored-by: Copilot <[email protected]>

Author: p3dr0rv

.github/workflows/gradle-versions-watcher.yml

@@ -0,0 +1,32 @@
+name: Notify on versions.gradle changes
+
+on:
+  push:
+    paths:
+      - 'gradle/versions.gradle'
+    branches:
+      - dev
+      - 'release/**'
+  pull_request:
+    paths:
+      - 'gradle/versions.gradle'
+    branches:
+      - dev
+      - 'release/**'
+
+permissions:
+  pull-requests: write
+
+jobs:
+  notify:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Log changes
+        run: |
+          echo "Changes detected in the 'gradle/versions.gradle' file."
+
+      - name: Comment on PR
+        if: github.event_name == 'pull_request'
+        uses: mshick/add-pr-comment@v2
+        with:
+          message: "⚠️ **Warning:** Changes detected in the 'versions.gradle' file! ⚠️\n\nPlease refer to [this document](https://dev.azure.com/IdentityDivision/IdentityWiki/_wiki/wikis/IdentityWiki.wiki/82085/Adding-or-Updating-Gradle-Dependencies) for more details."

.github/workflows/validate-pr-ab-id.yml

@@ -33,9 +33,16 @@ jobs:
   # Extracts the AB ID from the pull_request body using regex and store the result using outputs 
       - name: Get AB ID from comment
         id: get
+        env:
+          PR_BODY: ${{ github.event.pull_request.body }}
         run: |
-          result=$(echo "${{ github.event.pull_request.body }}" | grep -oP '(?<=#)\d+')
-          echo "id=${result}" >> "$GITHUB_OUTPUT"
+          # Sanitize PR body by removing backticks to prevent command substitution
+          clean=$(printf "%s" "$PR_BODY" | tr -d '`')
+      
+          # Extract AB ID (AB#1234567) - takes first match if multiple exist
+          result=$(printf "%s" "$clean" | grep -oP '(?<=AB#)\d+' | head -n 1)
+      
+          echo "id=$result" >> "$GITHUB_OUTPUT"
 
   # Get Pull request ID
   get_pr_id:

gradle/versions.gradle

@@ -1,4 +1,4 @@
-// Variables for entire project
+// Variables for entire project.
 // Taken from android-complete.
 ext {
     // SDK