build(docs-infra): upgrade cli command docs sources to ba5120d18

Updating [angular#master](https://github.com/angular/angular/tree/master) from [cli-builds#master](https://github.com/angular/cli-builds/tree/master).
Relevant changes in [commit range](angular/cli-builds@e758c41...ba5120d):

**Modified**
- help/e2e.json

aio/package.json

@@ -19,7 +19,7 @@
     "build-local": "yarn ~~build",
     "prebuild-with-ivy": "yarn setup-local && yarn ivy-ngcc",
     "build-with-ivy": "node scripts/build-with-ivy",
-    "extract-cli-command-docs": "node tools/transforms/cli-docs-package/extract-cli-commands.js e758c4174",
+    "extract-cli-command-docs": "node tools/transforms/cli-docs-package/extract-cli-commands.js ba5120d18",
     "lint": "yarn check-env && yarn docs-lint && ng lint && yarn example-lint && yarn tools-lint",
     "test": "yarn check-env && ng test",
     "pree2e": "yarn check-env && yarn update-webdriver",