(aws-synthetics): new Synthetics Runtimes are not supported

[stone8]

Describe the bug

The Synthetics CDK code (https://github.com/aws/aws-cdk/blob/v2.127.0/packages/aws-cdk-lib/aws-synthetics/lib/runtime.ts) doesn't support the new versions released recently (https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/CloudWatch_Synthetics_Library_nodejs_puppeteer.html): the missing versions include
syn-nodejs-puppeteer-6.2
syn-nodejs-puppeteer-5.2
syn-python-selenium-2.1

Expected Behavior

It is expected the https://github.com/aws/aws-cdk/blob/v2.127.0/packages/aws-cdk-lib/aws-synthetics/lib/runtime.ts should support the newly release versions:
syn-nodejs-puppeteer-6.2
syn-nodejs-puppeteer-5.2
syn-python-selenium-2.1

Current Behavior

Currently, https://github.com/aws/aws-cdk/blob/v2.127.0/packages/aws-cdk-lib/aws-synthetics/lib/runtime.ts doesn't support the newly release versions:
syn-nodejs-puppeteer-6.2
syn-nodejs-puppeteer-5.2
syn-python-selenium-2.1

Reproduction Steps

https://github.com/aws/aws-cdk/blob/v2.127.0/packages/aws-cdk-lib/aws-synthetics/lib/runtime.ts shows the following newly release versions are not supported:
https://github.com/aws/aws-cdk/blob/v2.127.0/packages/aws-cdk-lib/aws-synthetics/lib/runtime.ts

Possible Solution

Add the newly released Synthetics Runtime versions to the https://github.com/aws/aws-cdk/blob/v2.127.0/packages/aws-cdk-lib/aws-synthetics/lib/runtime.ts

Additional Information/Context

This is urgent, as the following older versions will be deprecated soon.
syn-nodejs-puppeteer-6.1
syn-nodejs-puppeteer-5.1
syn-python-selenium-2.0

CDK CLI Version

v2.128.0

Framework Version

No response

Node.js Version

nodejs 16.x and nodejs 18.x

OS

AWS Lambda

Language

TypeScript

Language Version

No response

Other information

No response

[kellertk]

The CloudWatch synthetics runtime versions that are present are scheduled to be deprecated by 8 Mar 2024. That means this module will need updating before that date.

[kellertk]

@wilhen01 got to this one before I did. This issue was fixed by #29132

[github-actions]

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[AlessandroVol23]

I've installed the latest CDK version (2.133.0) and it seems the newer versions are still not available right?

[wilhen01]

@AlessandroVol23 that screenshot contains the latest versions of the NodeJS runtime (6.2, 5.2). I can't actually see it in the screenshot but Python 2.1 should be in there too.