Bump long from 5.2.1 to 5.2.3 in /test/servers (#125)

Bumps [long](https://github.com/dcodeIO/long.js) from 5.2.1 to 5.2.3.
- [Release notes](https://github.com/dcodeIO/long.js/releases)
- [Commits](dcodeIO/long.js@v5.2.1...v5.2.3)

---
updated-dependencies:
- dependency-name: long
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]