Update release-notes.yml

Generate draft release notes for 5.0.0.M2

Author: puneetbehl

.github/workflows/release-notes.yml

@@ -26,9 +26,9 @@ jobs:
         with:
           prerelease: true
           commitish: master
-          name: 5.0.0.RC1
-          tag: v5.0.0.RC1
-          version: 5.0.0.RC1
+          name: 5.0.0.M2
+          tag: v5.0.0.M2
+          version: 5.0.0.M2
       # Otherwise:
       - name: Export Gradle Properties
         if: steps.check_release_drafter.outputs.has_release_drafter == 'false'