build(deps): bump micromatch

Bumps the npm_and_yarn group in /apps/OpenSignServer with 1 update: [micromatch](https://github.com/micromatch/micromatch).


Updates `micromatch` from 4.0.7 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@4.0.7...4.0.8)

---
updated-dependencies:
- dependency-name: micromatch
  dependency-type: indirect
  dependency-group: npm_and_yarn
...

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

Author: dependabot[bot]