Bump mitoteam/jpgraph from 10.3.2 to 10.4.1

Bumps [mitoteam/jpgraph](https://github.com/mitoteam/jpgraph) from 10.3.2 to 10.4.1.
- [Release notes](https://github.com/mitoteam/jpgraph/releases)
- [Commits](mitoteam/jpgraph@v10.3.2...10.4.1)

---
updated-dependencies:
- dependency-name: mitoteam/jpgraph
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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Author: dependabot[bot]