build(deps-dev): Bump @embroider/compat from 3.8.5 to 4.1.8

Bumps [@embroider/compat](https://github.com/embroider-build/embroider/tree/HEAD/packages/compat) from 3.8.5 to 4.1.8.
- [Release notes](https://github.com/embroider-build/embroider/releases)
- [Changelog](https://github.com/embroider-build/embroider/blob/main/CHANGELOG.md)
- [Commits](https://github.com/embroider-build/embroider/commits/HEAD/packages/compat)

---
updated-dependencies:
- dependency-name: "@embroider/compat"
  dependency-version: 4.1.8
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]