chore: use default output from action rather than manual output

.github/workflows/automatic-updates.yml

@@ -18,7 +18,7 @@ jobs:
         with:
           script: |
             const { default: script } = await import(`${process.env.GITHUB_WORKSPACE}/build-automation.mjs`);
-            await script(github);
+            return script(github);
 
       - name: Create update PR
         id: cpr
@@ -27,8 +27,8 @@ jobs:
           token: ${{ secrets.GITHUB_TOKEN }}
           branch: update-branch
           base: main
-          commit-message: "Update to ${{ steps.updt.outputs.updated-versions }}"
-          title: "Update to ${{ steps.updt.outputs.updated-versions }}"
+          commit-message: "Update to ${{ steps.updt.outputs.result.updatedVersions.join(', ') }}"
+          title: "Update to ${{ steps.updt.outputs.result.updatedVersions.join(', ') }}"
           delete-branch: true
           team-reviewers: |
             @nodejs/docker

build-automation.mjs

@@ -97,8 +97,9 @@ export default async function(github) {
         process.exit(0);
       }
     }
-    console.log(`::set-output name=updated-versions::${updatedVersions.join(',')}`);
     const { stdout } = (await exec(`git diff`));
     console.log(stdout);
+
+    return { updatedVersions };
   }
 }