Bump mitoteam/jpgraph from 10.4.1 to 10.4.3

Bumps [mitoteam/jpgraph](https://github.com/mitoteam/jpgraph) from 10.4.1 to 10.4.3.
- [Release notes](https://github.com/mitoteam/jpgraph/releases)
- [Commits](mitoteam/jpgraph@10.4.1...10.4.3)

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

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

Author: dependabot[bot]