Update dependency flutter_lints to v4

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
flutter_lints (source)	dev_dependencies	major	^3.0.0 -> ^4.0.0

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Release Notes

flutter/packages (flutter_lints)

v4.0.0

Compare Source

• Updates package:lints dependency to version 4.0.0, with the following changes:
  • adds library_annotations
  • adds no_wildcard_variable_uses
  • removes package_prefixed_library_names
  • removes library_names

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