package:source_gen v3.0.0

• Breaking Change: use the new element2 APIs in analyzer. Builders that
  do resolution need to switch to the new API, see
  https://github.com/dart-lang/sdk/blob/main/pkg/analyzer/doc/element_model_migration_guide.md.
  For questions please use https://github.com/dart-lang/build/discussions.
• Require build: ^3.0.0
• Updated the minimum package versions for a number of dependencies.
• Require Dart 3.7.0
• Update the GeneratorForAnnotation optimization to skip files with well known
  annotation names such as override, Deprecated, and pragma.