Update Changelog workflow to filter by 7.0.x

Author: puneetbehl

.github/workflows/release-notes.yml

@@ -23,6 +23,10 @@ jobs:
         if: steps.check_release_drafter.outputs.has_release_drafter == 'true'
         env:
           GITHUB_TOKEN: ${{ secrets.GH_TOKEN }}
+        with:
+          prerelease: false
+          commitish: 7.0.x
+          filter-by-commitish: true
       # Otherwise:
       - name: Export Gradle Properties
         if: steps.check_release_drafter.outputs.has_release_drafter == 'false'