ci: disable opening an issue on the initial commit (#54)

Author: sinchang

.github/workflows/release.yml

@@ -9,6 +9,7 @@ jobs:
   release:
     name: Release
     runs-on: ubuntu-latest
+    if: github.event.head_commit.message != 'Initial commit'
     steps:
       - uses: actions/checkout@v3
       - uses: ./.github/actions/prepare