try to fix detached branch error in ci

Author: molarmanful

.github/workflows/pub.yml

@@ -14,6 +14,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
         with:
+          ref: master
           persist-credentials: false
           fetch-depth: 0
       - run: echo -n ${{ github.ref_name }} > VERSION