feat(release-please): add output var for release created or not

.github/workflows/gh-release-please.yml

@@ -17,6 +17,10 @@ on:
         required: false
         type: string
         default: .release-please-manifest.json
+    outputs:
+      release_created: 
+        description: "Whether a release was created"
+        value: ${{ jobs.github-releaseplease.outputs.release_created }}
   push:
     branches:
     - 'main'
@@ -27,6 +31,8 @@ jobs:
     permissions:
       contents: write
       pull-requests: write
+    outputs:
+      release_created: ${{ steps.release.outputs.releases_created }}
     env:
       major_and_minor_tags: ${{ inputs.major_and_minor_tags || true }}
     steps: