Update generator guard (#767)

Author: Lykoi18

.github/workflows/generator-guard.yml

@@ -0,0 +1,23 @@
+name: Generator version guard
+
+on:
+  push:
+    branches:
+    - master
+    - '[12][0-9].[12]'
+  pull_request:
+
+jobs:
+  guard:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Get sources
+      uses: actions/checkout@v3
+      with:
+        fetch-depth: 2
+
+    - name: Run generator version guard
+      uses: DevExpress/github-actions/generator-version-guard@main
+      with:
+        generator_path: packages/devextreme-react-generator