Check for readme_filepath label not being present

.github/workflows/ci.yml

@@ -112,8 +112,12 @@ jobs:
         if: github.event_name != 'pull_request'
         id: image_readme_filepath
         run: |
-          readme_filepath=$(docker buildx bake --print 2>/dev/null | jq -r '.target.default.labels["dev.polymathrobotics.image.readme-filepath"]')
-          if [[ -n "$readme_filepath" ]]; then
+          json_data="$(docker buildx bake local --print 2>/dev/null)"
+          # Check if .group.local.targets.default exists, and if it does, extract its value
+          exit_code=0
+          result=$(echo "$json_data" | jq -e '.target.default.labels["dev.polymathrobotics.image.readme-filepath"]') || exit_code=$?
+          if [ $exit_code -eq 0 ]; then
+            readme_filepath=$(echo $json_data | jq -r '.target.default.labels["dev.polymathrobotics.image.readme-filepath"]')
             echo "image_readme_filepath=$readme_filepath" >> $GITHUB_ENV
           else
             echo "image_readme_filepath=${{ matrix.image }}/README.md" >> $GITHUB_ENV