Revert "test: temporary disable Jest E2E tests"

This reverts commit 5f14bf3.

Author: alan-agius4

tests/legacy-cli/e2e/tests/jest/basic.ts

@@ -2,9 +2,6 @@ import { applyJestBuilder } from '../../utils/jest';
 import { ng } from '../../utils/process';
 
 export default async function (): Promise<void> {
-  // TODO(alanagius): enable once https://github.com/angular/angular/pull/52505 is released.
-  return;
-
   await applyJestBuilder();
 
   const { stderr } = await ng('test');