CCM-11026: Ensure publish job runs correctly (#647)

Author: chris-elliott-nhsd

.github/workflows/pr_closed.yaml

@@ -59,6 +59,8 @@ jobs:
     name: Check for event schemas package version change
     needs: check-merge-or-workflow-dispatch
     if: needs.check-merge-or-workflow-dispatch.outputs.deploy == 'true'
+    outputs:
+      version_changed: ${{ steps.check-version.outputs.version_changed }}
     runs-on: ubuntu-latest
     permissions:
       contents: read
@@ -74,6 +76,7 @@ jobs:
           registry-url: 'https://npm.pkg.github.com'
 
       - name: check if local version differs from latest published version
+        id: check-version
         run: |
           published_version=$(npm view @nhsdigital/nhs-notify-event-schemas-template-management --json 2>/dev/null | jq -r '.["dist-tags"].latest')
           local_version=$(cat packages/event-schemas/package.json | jq -r '.version')