Modify branch check

.github/workflows/release.yml

@@ -14,6 +14,7 @@ jobs:
       - uses: actions/checkout@v2
         with:
           ref: master
+          fetch-depth: 0
       - name: Exit if not on master branch
         run: |
           if [ $(git --no-pager branch --format='%(refname:short)' --contains $(git rev-parse "$TAG_NAME") | grep -E '^master$') ]; then