Bump iminuit from 2.29.1 to 2.30.0

Bumps [iminuit](https://github.com/scikit-hep/iminuit) from 2.29.1 to 2.30.0.
- [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@v2.29.1...v2.30.0)

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

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

requirements.txt

@@ -7,4 +7,4 @@ tqdm==4.66.5
 tensorflow==2.16.1
 tensorflow_probability==0.24.0
 tf-keras==2.16.0
-iminuit==2.29.1
+iminuit==2.30.0