Update to analyzer 3.0.0

[ilyasshafigin]

I can't update freezed to 1.1.1, because flutter_gen depends on analyzer: '>=2.0.0 <3.0.0' and freezed requires analyzer: ^3.0.0

Because no versions of flutter_gen_runner match >4.1.4 <5.0.0 and flutter_gen_runner 4.1.4 depends on flutter_gen_core ^4.1.4, flutter_gen_runner ^4.1.4 requires flutter_gen_core ^4.1.4.
Because flutter_gen_core 4.1.4 depends on analyzer ^2.0.0 and no versions of flutter_gen_core match >4.1.4 <5.0.0, flutter_gen_core ^4.1.4 requires analyzer ^2.0.0.
Thus, flutter_gen_runner ^4.1.4 requires analyzer ^2.0.0.
And because freezed >=1.1.1 depends on analyzer ^3.0.0, flutter_gen_runner ^4.1.4 is incompatible with freezed >=1.1.1.
So, because customer depends on both freezed ^1.1.1 and flutter_gen_runner ^4.1.4, version solving failed.
pub get failed (1; So, because customer depends on both freezed ^1.1.1 and flutter_gen_runner ^4.1.4, version solving failed.)

Please upgrade analyzer to ^3.0.0

[wasabeef]

@ilyasshafigin

Just released v4.1.5