Bump iminuit from 2.25.0 to 2.25.2

Bumps [iminuit](https://github.com/scikit-hep/iminuit) from 2.25.0 to 2.25.2.
- [Release notes](https://github.com/scikit-hep/iminuit/releases)
- [Changelog](https://github.com/scikit-hep/iminuit/blob/develop/doc/changelog.rst)
- [Commits](scikit-hep/iminuit@v2.25.0...v2.25.2)

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

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