Use the correct ref when fetching

.gitea/workflows/release-tag.yml

@@ -8,15 +8,10 @@ jobs:
     name: Build the docker container
     runs-on: ubuntu-latest
     steps:
-      - name: Print env vars
-        run: echo ${{ var.GITEA_SHA }}
-      - name: Print env vars2
-        run: echo ${{ github.repository }}
-      - name: Print env vars3
-        run: echo ${{ gitea.repository }}
       - uses: actions/checkout@v4
         name: ⬇️ Checking out the repository
         with:
+          ref: ${{ gitea.ref }}
           github-server-url: https://git.kocoder.xyz
       - uses: docker/setup-buildx-action@v3
         name: Setup docker buildx