automatically add ok-to-test and deps label when dependabot send PR

.github/dependabot.yml

@@ -11,4 +11,12 @@ updates:
     interval: "weekly"
   open-pull-requests-limit: 10
   vulnerability-alerts:
-    enabled: true
+    enabled: true
+  labels:
+    - "ok-to-test"
+    - "dependencies"
+  ignore:
+    # ignore major and minor versions for dependencies updates
+    # Allow patches and security update.
+    - dependency-name: k8s.io/*
+      update-types: ["version-update:semver-major", "version-update:semver-minor"]