fix(deps): update dependency build to v4

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This PR contains the following updates:

Package	Type	Update	Change
build (source)	dependencies	major	^2.3.0 -> ^4.0.0

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Release Notes

dart-lang/build (build)

v4.0.0

Compare Source

• Remove methods and classes deprecated in 4.0.0.
• Make AssetReader.digest abstract.
• Remove unused deps: async, build_runner_core, convert.

v3.1.0

Compare Source

• Deprecate runBuilder. It has been moved to package:build_runner_core and
  will be removed from package:build. Please note: the currently supported
  ways to run builders are using build_runner on the command line or
  build_test in tests. If you need ongoing support for a different way to run
  builders please get in touch at
  https://github.com/dart-lang/build/discussions.
• Deprecate runPostProcessBuilder. Like runBuilder, it has been moved to
  package:build_runner_core and will be removed from package:build.
• Deprecate AssetWriterSpy. It will be removed.
• Deprecate MultiplexingBuilder. It will be removed.
• Use build_runner_core 9.3.1.

v3.0.2

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• Use build_runner_core 9.3.0.
• Documentation revamp.
• Allow meta 1.16.0.

v3.0.1

Compare Source

• Small improvements to RAM usage.
• Allow analyzer 8.0.0.

v3.0.0

Compare Source

• Removed unused deps: meta, pool.
• Breaking: 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.

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