CI: build container when the version is a clean git tag 2

.forgejo/workflows/build.yaml

@@ -45,6 +45,9 @@ jobs:
         id: builder
         run: echo "run=${{ inputs.build || !contains(steps.version.output.version, '-') }}" >> $GITHUB_OUTPUT
 
+      - name: Check
+        run: echo "Build? ${{ steps.builder.output.run }}"
+
       - name: Build container
         if: ${{ steps.builder.output.run }}
         uses: actions/buildah-build@v1