fix: cannot do unshallow in a complete repository

Author: LinuxSuRen

.github/workflows/release.yaml

@@ -19,8 +19,6 @@ jobs:
       - name: Set output
         id: vars
         run: echo "tag=$(git describe --tags)" >> $GITHUB_OUTPUT
-      - name: Unshallow
-        run: git fetch --prune --unshallow
       - name: Set up Go
         uses: actions/setup-go@v4
         with: