Docker: make sure all local tags are updated in CI build

Author: tomka

.github/workflows/docker.yaml

@@ -11,5 +11,5 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v2
-      - run: git fetch --unshallow --tags --prune
+      - run: git fetch --unshallow --tags --prune --force
       - run: docker build -t catmaid .