feat(rds): the RDS Construct Library is now Generally Available (#10610)

----

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

packages/@aws-cdk/aws-rds/README.md

@@ -5,11 +5,7 @@
 
 ![cfn-resources: Stable](https://img.shields.io/badge/cfn--resources-stable-success.svg?style=for-the-badge)
 
-> All classes with the `Cfn` prefix in this module ([CFN Resources](https://docs.aws.amazon.com/cdk/latest/guide/constructs.html#constructs_lib)) are always stable and safe to use.
-
-![cdk-constructs: Developer Preview](https://img.shields.io/badge/cdk--constructs-developer--preview-informational.svg?style=for-the-badge)
-
-> The APIs of higher level constructs in this module are in **developer preview** before they become stable. We will only make breaking changes to address unforeseen API issues. Therefore, these APIs are not subject to [Semantic Versioning](https://semver.org/), and breaking changes will be announced in release notes. This means that while you may use them, you may need to update your source code when upgrading to a newer version of this package.
+![cdk-constructs: Stable](https://img.shields.io/badge/cdk--constructs-stable-success.svg?style=for-the-badge)
 
 ---
 <!--END STABILITY BANNER-->
@@ -451,4 +447,4 @@ Aurora Serverless Clusters do not support the following features:
 
 Read more about the [limitations of Aurora Serverless](https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/aurora-serverless.html#aurora-serverless.limitations)
 
-Learn more about using Amazon Aurora Serverless by reading the [documentation](https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/aurora-serverless.html)
+Learn more about using Amazon Aurora Serverless by reading the [documentation](https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/aurora-serverless.html)

packages/@aws-cdk/aws-rds/package.json

@@ -132,8 +132,8 @@
       "docs-public-apis:@aws-cdk/aws-rds.SecretRotationApplication.MARIADB_ROTATION_MULTI_USER"
     ]
   },
-  "stability": "experimental",
-  "maturity": "developer-preview",
+  "stability": "stable",
+  "maturity": "stable",
   "awscdkio": {
     "announce": false
   }