CLOUD-835: Add action to check if manifests are up-to-date (#1418)

Co-authored-by: Viacheslav Sarzhan <slava.sarzhan@percona.com>

Author: egegunes

.github/pull_request_template.md

@@ -23,7 +23,6 @@
 
 **Config/Logging/Testability**
 - [ ] Are all needed new/changed options added to default YAML files?
-- [ ] Are the manifests (crd/bundle) regenerated if needed?
 - [ ] Did we add proper logging messages for operator actions?
 - [ ] Did we ensure compatibility with the previous version or cluster upgrade process?
 - [ ] Does the change support oldest and newest supported MongoDB version?

.github/workflows/reviewdog.yml

@@ -73,3 +73,12 @@ jobs:
           reporter: github-pr-review
           level: info
           exclude: "./vendor/*"
+
+  manifests:
+    name: runner / manifests
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - run: |
+          make generate manifests VERSION=main
+          git diff --exit-code