add the breaking API change health check

[jakemac53]

Checking to see if this still is broken for workspace repos

[github-actions[bot]]

PR Health

Breaking changes :heavy_check_mark:

| Package | Change | Current Version | New Version | Needed Version | Looking good? | | :--- | :--- | ---: | ---: | ---: | ---: | |build_web_compilers|Breaking|4.1.0-beta.1|4.2.0|4.2.0|:heavy_check_mark:|

Changelog Entry :heavy_check_mark:

| Package | Changed Files | | :--- | :--- | Changes to files need to be [accounted for](https://github.com/dart-lang/ecosystem/wiki/Changelog) in their respective changelogs.

Package publish validation :exclamation:

| Package | Version | Status | | :--- | ---: | :--- | | package:build | 2.4.2-wip | WIP (no publish necessary) | | package:build_config | 1.1.2-wip | WIP (no publish necessary) | | package:build_daemon | 4.0.3-wip | WIP (no publish necessary) | | package:build_modules | 5.0.10-wip | WIP (no publish necessary) | | package:build_resolvers | 2.4.3-wip | WIP (no publish necessary) | | package:build_runner | 2.4.13 | already published at pub.dev | | package:build_runner_core | 7.3.3-wip | WIP (no publish necessary) | | package:build_test | 2.2.3-wip | WIP (no publish necessary) | | package:scratch_space | 1.0.3-wip | WIP (no publish necessary) | | package:build_web_compilers | 4.2.0 | (error) pub publish dry-run failed; add the `publish-ignore-warnings` label to ignore | Documentation at https://github.com/dart-lang/ecosystem/wiki/Publishing-automation. This check can be disabled by tagging the PR with `skip-version-check`.