Add tests for allow to update share access rule

Starting micro-version 2.88, Manila will allow to update
access_level of share access rule.

Depends-on: https://review.opendev.org/c/openstack/manila/+/931050
Related-Bug: #2066871
Change-Id: I8500f71b527b4e5037f128906f68385f821ebf42
diff --git a/releasenotes/notes/add-update-access-rules-e43b4d0fbabdb596.yaml b/releasenotes/notes/add-update-access-rules-e43b4d0fbabdb596.yaml
new file mode 100644
index 0000000..29b2936
--- /dev/null
+++ b/releasenotes/notes/add-update-access-rules-e43b4d0fbabdb596.yaml
@@ -0,0 +1,6 @@
+---
+features:
+  - |
+    Added tests to verify share access rule update operation. Update is
+    allowed only for admin and project member. Also supported microversion is
+    increased to 2.88.