build(deps): Bump lmfit from 1.2.0 to 1.2.1
Bumps [lmfit](https://github.com/lmfit/lmfit-py) from 1.2.0 to 1.2.1.
- [Release notes](https://github.com/lmfit/lmfit-py/releases)
- [Changelog](https://github.com/lmfit/lmfit-py/blob/master/doc/whatsnew.rst)
- [Commits](https://github.com/lmfit/lmfit-py/compare/1.2.0...1.2.1)
---
updated-dependencies:
- dependency-name: lmfit
dependency-type: direct:production
update-type: version-update:semver-patch
...
Signed-off-by: dependabot[bot] <support@github.com>