git fetch before changing branches

Author: prvashisht

.github/workflows/release-extension.yaml

@@ -126,6 +126,7 @@ jobs:
 
     - name: Zip Chromium extension
       run: |
+        git fetch --all
         git checkout main
         VERSION=${{ needs.check_version.outputs.new_version }}
         zip -r ../signature-sync-chrome-${VERSION}.zip . -x '.*' -x '__MACOSX' -x '*.md'