synthetics: synthetics python selenium 4.0 missing in Runtime options

[espixxl]

Describe the bug

Latests selenium python runtime for canaries available in the library is based on Python 8 which will get deprecated on 14th October 2024. In order to upgrade canaries, AWS recently released the Runtime syn-python-selenium-4.0 which uses Python 3.9, but this is still not available in the latest cdk-lib version v2.154.1.

Regression Issue

• Select this option if this issue appears to be a regression.

Last Known Working CDK Version

No response

Expected Behavior

All available runtimes using console are also available in the cdk lib

Current Behavior

Is not possible to upgrade existing canaries in an automated way to use a non deprecated Python version runtime

Reproduction Steps

For existing canaries, navigate to AWS Cloudwatch -> Synthetics, select the synthetic and on Actions -> Upgrade Runtime and there is the new runtime available.

Possible Solution

Include the already available canary runtime described in this ticket into a new release of the cdk lib

Additional Information/Context

No response

CDK CLI Version

v2.154.1

Framework Version

No response

Node.js Version

v2.154.1.

OS

cdk

Language

TypeScript

Language Version

No response

Other information

No response

[ashishdhingra]

• Per Runtime versions using Python and Selenium Webdriver, syn-python-selenium-4.0 is the latest version of Python Selenium web driver.
• syn-python-selenium-4.0 is also one of the supported options in AWS CloudWatch Synthetics Canaries console:
  

[ashishdhingra]

Existing PR #31101 merged which closed issue #30137. The changes would be available in next AWS CDK lib version.

[ashishdhingra]

Closing this issue since related PR #31101 is merged.

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