ci: New 'check' job to ensure build passes

.github/workflows/build.yml

@@ -125,3 +125,17 @@ jobs:
           tag_name: ${{ github.event.create.ref }}
           draft: false
           prerelease: ${{ steps.gitversion.outputs.preReleaseTag != '' }}
+
+  # The main purpose of this job is to group all the other jobs together into one single job status
+  # that can be set as a requirement to merge pull requests. This is easier than enumerating all
+  # jobs in a workflow to ensure they all pass.
+  check:
+    if: always()
+    name: Check Build Succeeds
+    needs: [build, smoke]
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check if all jobs succeeded
+        uses: re-actors/alls-green@release/v1
+        with:
+          jobs: ${{ toJSON(needs) }}