[tests] Use AL2 build container for relevant e2e tests (#11329)

* Forces the AL2 build container image for fixtures that depend on it,
via `engines.node` in package.json for most cases.
* The `testDeployment()` function was updated to send
`projectSettings.nodeVersion` in the POST body, to mimic the behavior in
CLI.
* For Go, Ruby, and Python tests, the `projectSettings.nodeVersion`
property is set "globally" in the Jest setup file, so that individual
fixtures didn't need to be adjusted.

examples/__tests__/test-utils.ts

@@ -4,7 +4,7 @@ import { lstatSync, readdirSync } from 'fs';
 export async function deployExample(filename: string) {
   const { testDeployment } = require('../../test/lib/deployment/test-deployment.js');
   const example = basename(filename).replace(/\.test\.ts$/, '');
-  await testDeployment(join(filename, '..', '..', '..', example));
+  await testDeployment(join(process.cwd(), example));
 }
 
 export function getExamples() {