chore: fix e2e tests and enable on CI #125

Job	Run time
detect_changed_packages	5s
Run unit tests (firebase_ui_auth, html)	2m 11s
Run unit tests (firebase_ui_auth, io)	1m 26s
Run unit tests (firebase_ui_firestore, html)	1m 32s
Run unit tests (firebase_ui_firestore, io)	1m 35s
Run unit tests (firebase_ui_oauth, html)	1m 54s
Run unit tests (firebase_ui_oauth, io)	1m 17s
Run unit tests (firebase_ui_oauth_apple, html)	57s
Run unit tests (firebase_ui_oauth_apple, io)	1m 13s
Run unit tests (firebase_ui_oauth_facebook, html)	1m 13s
Run unit tests (firebase_ui_oauth_facebook, io)	1m 12s
Run unit tests (firebase_ui_oauth_google, html)	1m 3s
Run unit tests (firebase_ui_oauth_google, io)	1m 15s
Run unit tests (firebase_ui_oauth_twitter, html)	1m 19s
Run unit tests (firebase_ui_oauth_twitter, io)	57s
Run unit tests (firebase_ui_storage, html)	1m 25s
Run unit tests (firebase_ui_storage, io)	1m 19s
	21m 53s

Provide feedback