build(deps): bump parse-server in /apps/OpenSignServer

Bumps [parse-server](https://github.com/parse-community/parse-server) from 8.6.2 to 9.1.1.
- [Release notes](https://github.com/parse-community/parse-server/releases)
- [Changelog](https://github.com/parse-community/parse-server/blob/alpha/CHANGELOG.md)
- [Commits](parse-community/parse-server@8.6.2...9.1.1)

---
updated-dependencies:
- dependency-name: parse-server
  dependency-version: 9.1.1
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]