chore(deps): bump mxgraph from 4.1.1 to 4.2.2

Bumps [mxgraph](https://github.com/jgraph/mxgraph) from 4.1.1 to 4.2.2.
- [Release notes](https://github.com/jgraph/mxgraph/releases)
- [Changelog](https://github.com/jgraph/mxgraph/blob/master/ChangeLog)
- [Commits](jgraph/mxgraph@v4.1.1...v4.2.2)

---
updated-dependencies:
- dependency-name: mxgraph
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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