build: bump docx from 8.5.0 to 9.1.0 in /frontend

Bumps [docx](https://github.com/dolanmiu/docx) from 8.5.0 to 9.1.0.
- [Release notes](https://github.com/dolanmiu/docx/releases)
- [Commits](dolanmiu/docx@8.5.0...9.1.0)

---
updated-dependencies:
- dependency-name: docx
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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