Update test.yml

Author: thboop

.github/workflows/test.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - id: test
-      run: ::set-output name=foo::bar
+      run: echo "::set-output name=foo::bar"
     - name: Dump steps context
       env:
         STEPS_CONTEXT: ${{ toJson(steps) }}