ci(docs-infra): re-enable systemjs JIT docs examples (angular#29083)

With 63fb6c08cf1d69f912a0a4e9a28846d6e6985d04, the bug that required
us to temporarily disable these two SystemJS JIT tests has been fixed.

Therefore we can re-enable these tests.

PR Close angular#29083

Author: devversion

aio/tools/examples/run-example-e2e.js

@@ -26,10 +26,6 @@ const IGNORED_EXAMPLES = [
 const fixmeIvyExamples = [
   // fixmeIvy('unknown') app fails at runtime due to missing external service (goog is undefined)
   'i18n',
-  // fixmeIvy('unknown') JIT app fails with external resources not loaded.
-  'upgrade-phonecat-2-hybrid',
-  // fixmeIvy('unknown') JIT app fails with external resources not loaded.
-  'upgrade-phonecat-3-final',
 ];
 
 if (argv.ivy) {