Use github.repository for github-changelog-generator

Author: artembilan

.github/workflows/spring-finalize-release.yml

@@ -47,7 +47,7 @@ jobs:
         uses: spring-io/[email protected]
         with:
           milestone: ${{ env.MILESTONE }}
-          repository: ${{ env.GITHUB_REPOSITORY }}
+          repository: ${{ github.repository }}
           token: ${{ env.GITHUB_TOKEN }}
           config-file: changelog.properties