feat(kinesis): the aws-kinesis module is now stable (#7349)

Closes #5874

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

@@ -4,11 +4,7 @@
 
 ![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 This means that while you may use them, you may need to update your source code when upgrading to a newer version of this package.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-->

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

@@ -87,8 +87,8 @@
   "engines": {
     "node": ">= 10.12.0"
   },
-  "stability": "experimental",
-  "maturity": "developer-preview",
+  "stability": "stable",
+  "maturity": "stable",
   "awscdkio": {
     "announce": false
   }