chore(ci): also deploy Firebase functions to docs-angularjs-org

Previously, we only deployed to Firebase hosting for the
`docs-angularjs-org` Firebase project. This meant that the deployed
functions used an old version of Node.js and started failing once
support was dropped for that version. See angular#17111 for details.

This commit fixes this by ensuring that we deploy to all enabled
Firebase services (currently functions and hosting).

Fixes angular#17111
Fixes angular/angularjs.org#251

.circleci/config.yml

@@ -398,7 +398,7 @@ jobs:
             # Do not use `yarn firebase` as that causes the Firebase CLI to look for `firebase.json`
             # in the root directory, even if run from inside `scripts/docs.angularjs.org-firebase/`.
             firebase=$(yarn bin)/firebase
-            $firebase deploy --message  "Commit:\ $CI_COMMIT" --non-interactive --only hosting --project "docs-angularjs-org-9p2" --token "$FIREBASE_TOKEN"
+            $firebase deploy --message "Commit:\ $CI_COMMIT" --non-interactive --project "docs-angularjs-org-9p2" --token "$FIREBASE_TOKEN"
 
 workflows:
   version: 2