CI: build container when the version is a clean git tag 12

.forgejo/workflows/build.yaml

@@ -22,16 +22,18 @@ jobs:
 
       - name: Check if the container should be built
         id: builder
-        run: echo "run=toJSON(${{ inputs.build || !contains(steps.version.outputs.version, '-')) }}" >> $GITHUB_OUTPUT
+        env:
+          RUN: toJSON(${{ inputs.build || !contains(steps.version.outputs.version, '-')) }}
+        run: |
+          echo "run=$RUN" >> $GITHUB_OUTPUT
+          echo "Run build: $RUN"
 
       - name: Check
         env:
           VERSION: ${{ steps.version.outputs.version }}
-          BUILD: ${{ fromJSON(steps.builder.outputs.run)}}
+          RUN: ${{ fromJSON(steps.builder.outputs.run)}}
         run: |
-          echo "version $VERSION"
-          echo "Build"
-          echo "$BUILD"
+          echo "Version $VERSION, run the build: $RUN"
 
       - uses: pnpm/action-setup@v4
         name: Install pnpm