Apply RDS API updates to CRD (#81)

Fixes aws-controllers-k8s/community#1311

Description of changes: This updates the API fields available to the RDS API.  This also adds support for creating Aurora Serverless v2 clusters.

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

Author: jkatz

apis/v1alpha1/ack-generate-metadata.yaml

@@ -1,11 +1,11 @@
 ack_generate_info:
-  build_date: "2022-06-17T17:52:08Z"
+  build_date: "2022-06-17T22:34:21Z"
   build_hash: a45f3b900849ec03c5e16ed2778c0b8e2923ffee
-  go_version: go1.17.5
-  version: v0.19.1
-api_directory_checksum: 4bdcfc19ab3ec6ae11525e6eb3a201e4a25b00fa
+  go_version: go1.18.3
+  version: v0.19.0-5-ga45f3b9
+api_directory_checksum: 7567208aa7463aaa3c937e45107f520e6fc2946f
 api_version: v1alpha1
-aws_sdk_go_version: v1.42.0
+aws_sdk_go_version: v1.44.27
 generator_config_info:
   file_checksum: c9c7e5d1decf6b529a8b451570ccc4fdfe1e6f79
   original_file_name: generator.yaml