feat(synthetics-alpha): add latest two NodeJS runtimes (#26967)

This adds the ability to use the latest two NodeJS runtimes in your Synthetics construct.

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

Author: philipmw

Diff for: packages/@aws-cdk/aws-synthetics-alpha/lib/runtime.ts

@@ -216,6 +216,32 @@ export class Runtime {
    */
   public static readonly SYNTHETICS_NODEJS_PUPPETEER_4_0 = new Runtime('syn-nodejs-puppeteer-4.0', RuntimeFamily.NODEJS);
 
+  /**
+   * `syn-nodejs-puppeteer-5.0` includes the following:
+   * - Lambda runtime Node.js 16.x
+   * - Puppeteer-core version 19.7.0
+   * - Chromium version 111.0.5563.146
+   *
+   * New Features:
+   * - **Dependency upgrade**: The Puppeteer-core version is updated to 19.7.0. The Chromium version is upgraded to 111.0.5563.146.
+   *
+   * @see https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/CloudWatch_Synthetics_Library_nodejs_puppeteer.html#CloudWatch_Synthetics_runtimeversion-nodejs-puppeteer-5.0
+   */
+  public static readonly SYNTHETICS_NODEJS_PUPPETEER_5_0 = new Runtime('syn-nodejs-puppeteer-5.0', RuntimeFamily.NODEJS);
+
+  /**
+   * `syn-nodejs-puppeteer-5.1` includes the following:
+   * - Lambda runtime Node.js 16.x
+   * - Puppeteer-core version 19.7.0
+   * - Chromium version 111.0.5563.146
+   *
+   * Bug fixes:
+   * - **Bug fix**: This runtime fixes a bug in `syn-nodejs-puppeteer-5.0` where the HAR files created by the canaries were missing request headers.
+   *
+   * @see https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/CloudWatch_Synthetics_Library_nodejs_puppeteer.html#CloudWatch_Synthetics_runtimeversion-nodejs-puppeteer-5.1
+   */
+  public static readonly SYNTHETICS_NODEJS_PUPPETEER_5_1 = new Runtime('syn-nodejs-puppeteer-5.1', RuntimeFamily.NODEJS);
+
   /**
    * `syn-python-selenium-1.0` includes the following:
    * - Lambda runtime Python 3.8