Add git fetch --tags before checkout in Docker workflow

- Ensure all tags are available before checking out specific version
- Fixes potential issues when manually specifying a version tag
- Improves reliability of tag-based checkouts

Author: codebude

.github/workflows/docker-build.yml

@@ -49,6 +49,7 @@ jobs:
 
     - name: Checkout tag
       run: |
+        git fetch --tags
         git checkout ${{ steps.version-tag.outputs.tag }}
 
     - name: Log in to GitHub Container Registry