fix change log format

Author: jinliu9508

.github/workflows/create-release-pr.yml

@@ -234,23 +234,44 @@ jobs:
           project-path: OneSignalExample
           args: -quit -batchmode -nographics -buildTarget Android -executeMethod OneSignalSDK.OneSignalPackagePublisher.ExportUnityPackage
 
+      # get the release notes from the PR generated by the shared action
+      - name: Get PR release notes
+        id: notes
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          release_notes=$(gh pr view "${{ github.event.pull_request.number }}" --json body -q '.body')
+
+          cleaned_notes=$(echo "$release_notes" \
+            | awk '/^Update/{found=1} found' \
+            | sed '/^- - -$/d' \
+            | sed '/^[[:space:]]*$/d')
+
+          echo "RELEASE_NOTES<<EOF" >> $GITHUB_ENV
+          echo "$cleaned_notes" >> $GITHUB_ENV
+          echo "EOF" >> $GITHUB_ENV
+
+      - name: Update CHANGELOG.md
+        run: |
+          echo "Inserting release notes for ${{ inputs.unity_version }}..."
+          awk -v ver="${{ inputs.unity_version }}" \
+              -v notes="$RELEASE_NOTES" \
+              'BEGIN { printed=0 }
+               /^## \[Unreleased\]/ {
+                   print $0;
+                   print "## [" ver "]\n### Changed";
+                   print notes "\n";
+                   printed=1;
+                   next
+               }
+               { print $0 }' CHANGELOG.md > CHANGELOG.tmp && mv CHANGELOG.tmp CHANGELOG.md
+
       - name: Commit Release
         run: |
           git add .
           git commit -m "Release ${{ inputs.unity_version }}"
           git push
 
-      - name: Debug — list Unity package files
-        run: |
-          echo "Current working directory:"
-          pwd
-          echo ""
-          echo "List of all files under OneSignalExample:"
-          ls -Rlh OneSignalExample || true
-          echo ""
-          echo "Searching for .unitypackage files:"
-          find OneSignalExample -type f -name "*.unitypackage" -print
-
       - name: Draft Release
         env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}