Update Release Signoff Checklist for KEP-3751 before GA

Author: sunnylovestiramisu

keps/sig-storage/3751-volume-attributes-class/README.md

@@ -82,15 +82,15 @@
 Items marked with (R) are required *prior to targeting to a milestone / release*.
 
 - [X] (R) Enhancement issue in release milestone, which links to KEP dir in [kubernetes/enhancements] (not the initial KEP PR)
-- [ ] (R) KEP approvers have approved the KEP status as `implementable`
+- [X] (R) KEP approvers have approved the KEP status as `implementable`
 - [X] (R) Design details are appropriately documented
-- [ ] (R) Test plan is in place, giving consideration to SIG Architecture and SIG Testing input (including test refactors)
-    - [ ] e2e Tests for all Beta API Operations (endpoints)
-    - [ ] (R) Ensure GA e2e tests for meet requirements for [Conformance Tests](https://github.com/kubernetes/community/blob/master/contributors/devel/sig-architecture/conformance-tests.md)
+- [X] (R) Test plan is in place, giving consideration to SIG Architecture and SIG Testing input (including test refactors)
+    - [X] e2e Tests for all Beta API Operations (endpoints) - [dashboard](https://testgrid.k8s.io/sig-storage-kubernetes#kind-storage-alpha-beta-features&include-filter-by-regex=%5BFeature%3AVolumeAttributesClass%5D&include-filter-by-regex=%5BFeature%3AVolumeAttributesClass%5D&include-filter-by-regex=%5C%5BFeature%3AVolumeAttributesClass%5C%5D)
+    - [X] (R) Ensure GA e2e tests for meet requirements for [Conformance Tests](https://github.com/kubernetes/community/blob/master/contributors/devel/sig-architecture/conformance-tests.md)
     - [ ] (R) Minimum Two Week Window for GA e2e tests to prove flake free
 - [ ] (R) Graduation criteria is in place
     - [ ] (R) [all GA Endpoints](https://github.com/kubernetes/community/pull/1806) must be hit by [Conformance Tests](https://github.com/kubernetes/community/blob/master/contributors/devel/sig-architecture/conformance-tests.md)
-- [ ] (R) Production readiness review completed
+- [X] (R) Production readiness review completed
 - [ ] (R) Production readiness review approved
 - [X] "Implementation History" section is up-to-date for milestone
 - [X] User-facing documentation has been created in [kubernetes/website], for publication to [kubernetes.io]
@@ -689,10 +689,7 @@ VolumeAttributesClass parameters can be considered as best-effort parameters, th
 
 * Basic unit tests for performance and quota system.
 * API conformance tests
-* E2E tests with happy tests in the [K8s storage framework](https://github.com/kubernetes/kubernetes/tree/master/test/e2e/storage/testsuites) for different drivers testing
-* E2E tests using mock driver to cause failure on create, update and recovering cases
-  * [K8s storage framework](https://github.com/kubernetes/kubernetes/tree/master/test/e2e/storage/testsuites)
-  * [csi-tes](https://github.com/kubernetes-csi/csi-test)
+* E2E tests: https://github.com/kubernetes/kubernetes/blob/master/test/e2e/storage/volumeattributesclass.go
 * Test coverage of quota usage with ResourceQuota and LimitRange
 * Measure latency impact to CreateVolume during beta and provide feedback to operators
 * Upgrade and rollback test when the feature gate changes to beta