build(deps): bump micromatch and filemanager-webpack-plugin

Bumps [micromatch](https://github.com/micromatch/micromatch) to 4.0.8 and updates ancestor dependency [filemanager-webpack-plugin](https://github.com/gregnb/filemanager-webpack-plugin). These dependencies need to be updated together.


Updates `micromatch` from 4.0.4 to 4.0.8
- [Release notes](https://github.com/micromatch/micromatch/releases)
- [Changelog](https://github.com/micromatch/micromatch/blob/master/CHANGELOG.md)
- [Commits](micromatch/micromatch@4.0.4...4.0.8)

Updates `filemanager-webpack-plugin` from 6.1.7 to 8.0.0
- [Release notes](https://github.com/gregnb/filemanager-webpack-plugin/releases)
- [Changelog](https://github.com/gregnb/filemanager-webpack-plugin/blob/master/CHANGELOG.md)
- [Commits](gregnb/filemanager-webpack-plugin@v6.1.7...v8.0.0)

---
updated-dependencies:
- dependency-name: micromatch
  dependency-type: indirect
- dependency-name: filemanager-webpack-plugin
  dependency-type: direct:development
...

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