🐛 [firebase_auth] Please update intl dependency

[ea-jobvalley]

Hello,
I can't update the pub intl in my project because firebase_auth depends on intl 0.17.0.

Because no versions of firebase_auth match >4.2.5 <5.0.0 and firebase_auth 4.2.5 depends on firebase_auth_web ^5.2.4, firebase_auth ^4.2.5 requires firebase_auth_web ^5.2.4.
Because firebase_auth_web 5.2.4 depends on intl ^0.17.0 and no versions of firebase_auth_web match >5.2.4 <6.0.0, firebase_auth_web ^5.2.4 requires intl ^0.17.0.
Thus, firebase_auth ^4.2.5 requires intl ^0.17.0.
So, because app depends on both firebase_auth ^4.2.5 and intl ^0.18.0, version solving failed.
pub get failed

Please update the dependency.

[darshankawar]

Closing as duplicate of #10199. Please see this comment for solution.