Bump build_runner from 2.2.0 to 2.3.3

Bumps [build_runner](https://github.com/dart-lang/build) from 2.2.0 to 2.3.3.
- [Release notes](https://github.com/dart-lang/build/releases)
- [Commits](dart-lang/build@build_runner-v2.2.0...build_runner-v2.3.3)

---
updated-dependencies:
- dependency-name: build_runner
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>