Bump nodemon from 2.0.7 to 3.1.0 in /rendertron

Bumps [nodemon](https://github.com/remy/nodemon) from 2.0.7 to 3.1.0.
- [Release notes](https://github.com/remy/nodemon/releases)
- [Commits](remy/nodemon@v2.0.7...v3.1.0)

---
updated-dependencies:
- dependency-name: nodemon
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]