Support firebase_storage >= 11

## 🏗 Enhancement Proposal

Support `firebase_storage` >= 11

Currently the package fails with the following error:
```
Because flutter_cache_manager_firebase 2.0.1 depends on firebase_storage >=8.0.0 <11.0.0 and no versions of flutter_cache_manager_firebase match >2.0.1 <3.0.0, flutter_cache_manager_firebase ^2.0.1 requires firebase_storage >=8.0.0 <11.0.0.
```