upgrade freezed to3.0.0

[mdddj]

freezed 3.0 changelog: https://pub.dev/packages/freezed/changelog

Because no versions of flutter_stripe match >11.4.0 <12.0.0 and flutter_stripe 11.4.0 depends on stripe_platform_interface ^11.4.0, flutter_stripe ^11.4.0 requires stripe_platform_interface ^11.4.0.
Because stripe_platform_interface 11.4.0 depends on freezed_annotation ^2.4.1 and no versions of stripe_platform_interface match >11.4.0 <12.0.0, stripe_platform_interface ^11.4.0 requires freezed_annotation ^2.4.1.
Thus, flutter_stripe ^11.4.0 requires freezed_annotation ^2.4.1.
So, because xxx depends on both flutter_stripe ^11.4.0 and freezed_annotation ^3.0.0, version solving failed.
Failed to update packages.