Update release.yaml

Author: k163377

.github/workflows/release.yaml

@@ -12,5 +12,5 @@ jobs:
         uses: bakunyo/git-pr-release-action@master
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          GIT_PR_RELEASE_BRANCH_STAGING: $GITHUB_REF
+          GIT_PR_RELEASE_BRANCH_STAGING: ${{ github.ref }}
           GIT_PR_RELEASE_BRANCH_PRODUCTION: main