added matrix action

.github/workflows/matrix.yaml

@@ -0,0 +1,38 @@
+name: Compatibility Matrix
+
+on:
+  release:
+    types: [created]
+  pull_request:
+    types: [opened, synchronize, reopened, edited]
+    branches:
+      - main
+    paths:
+      - "**.go"
+      - "!**_test.go" # exclude test files to ignore unit test changes
+      - "test/**" # include test files in e2e again
+      - "!**.md"
+      - "Dockerfile.release"
+      - ".github/workflows/e2e.yaml"
+      - "charts/**"
+      - "manifests/**"
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  check-if-matrix-is-up-to-date:
+    - name: Checkout PR
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      run: gh pr checkout ${{ github.event.pull_request.number }}
+    - name: run matrix-gen
+      run: go run hack/compat-matrix/main.go
+    - name: commit change if needed
+      run: git diff --quiet && git diff --staged --quiet || git commit -am 'updated compatibility matrix'
+    - name: Push changes
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TO:KEN }}
+      run: git push
+