docs(lambda-nodejs): fix default runtime docs

[J11522]

With #26763 the default runtime was reverted from NODEJS_18_X to NODEJS_16_X
This PR reflects this in the docs of the NodejsFunctionProps

---

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

[aws-cdk-automation]

The pull request linter has failed. See the aws-cdk-automation comment below for failure reasons. If you believe this pull request should receive an exemption, please comment and provide a justification.

A comment requesting an exemption should contain the text Exemption Request. Additionally, if clarification is needed add Clarification Request to a comment.

[mrgrain]

This is the logic:
https://github.com/aws/aws-cdk/blame/83e37e863ee6cb8ce8c02f6f9c47de5fd2c6bef5/packages/aws-cdk-lib/aws-lambda-nodejs/lib/function.ts#L131-L135

I don't think we can just say Node16 here....

[J11522]

This is the logic: https://github.com/aws/aws-cdk/blame/83e37e863ee6cb8ce8c02f6f9c47de5fd2c6bef5/packages/aws-cdk-lib/aws-lambda-nodejs/lib/function.ts#L131-L135

I don't think we can just say Node16 here....

True. I added the explanation to the runtime default

✅ Updated pull request passes all PRLinter validations. Dismissing previous PRLinter review.

[mergify]

Thank you for contributing! Your pull request will be updated from main and then merged automatically (do not update manually, and be sure to allow changes to be pushed to your fork).

[mrgrain]

@Mergifyio update

[mergify]

update

❌ Mergify doesn't have permission to update

Details

For security reasons, Mergify can't update this pull request. Try updating locally.
GitHub response: refusing to allow a GitHub App to create or update workflow .github/workflows/update-metadata-regions.yml without workflows permission

Pull request has been modified.

[aws-cdk-automation]

AWS CodeBuild CI Report

• CodeBuild project: AutoBuildv2Project1C6BFA3F-wQm2hXv2jqQv
• Commit ID: 87ccb4c
• Result: SUCCEEDED
• Build Logs (available for 30 days)

Powered by github-codebuild-logs, available on the AWS Serverless Application Repository

[mergify]

Thank you for contributing! Your pull request will be updated from main and then merged automatically (do not update manually, and be sure to allow changes to be pushed to your fork).