ci: detect if bump is needed

Author: jsleroy

.github/workflows/test.yml

@@ -34,6 +34,7 @@ jobs:
         run: thirsty examples/test.gpx output.gpx
 
   bump:
+    id: bump
     needs: test
     runs-on: ubuntu-latest
     if: github.ref == 'refs/heads/main'
@@ -54,8 +55,10 @@ jobs:
         run: |
           if cz bump --dry-run; then
             echo "bump_needed=true" >> $GITHUB_ENV
+            echo "bump_needed=true" >> $GITHUB_OUTPUT
           else
             echo "bump_needed=false" >> $GITHUB_ENV
+            echo "bump_needed=false" >> $GITHUB_OUTPUT
           fi
 
       - name: Bump version and push tag
@@ -72,7 +75,7 @@ jobs:
   release:
     runs-on: ubuntu-latest
     needs: bump
-    if: env.bump_needed == 'true' && github.ref_type == 'tag'
+    if: needs.bump.outputs.bump_needed == 'true' && github.ref_type == 'tag'
     steps:
       - name: Create GitHub Release
         uses: softprops/action-gh-release@v2