Pymanopt

What's Changed
* Re-enable build of stable docs by nkoep in https://github.com/pymanopt/pymanopt/pull/228
* Add JAX backend by nkoep in https://github.com/pymanopt/pymanopt/pull/206
* Add utility function to check Hessian operators by nkoep in https://github.com/pymanopt/pymanopt/pull/230
* Migrate from versioneer to setuptools-scm by nkoep in https://github.com/pymanopt/pymanopt/pull/231
* Add unitary group manifold by nkoep in https://github.com/pymanopt/pymanopt/pull/232 and https://github.com/pymanopt/pymanopt/pull/233
* chore: move metadata to pyproject.toml by SauravMaheshkar in https://github.com/pymanopt/pymanopt/pull/236
* Update zenodo to DOI umbrella badge by nkoep in https://github.com/pymanopt/pymanopt/pull/238
* feat(ci): add pip cache to CI by SauravMaheshkar in https://github.com/pymanopt/pymanopt/pull/239
* Add Complex valued manifolds by antoinecollas in https://github.com/pymanopt/pymanopt/pull/125

New Contributors
* SauravMaheshkar made their first contribution in https://github.com/pymanopt/pymanopt/pull/222

**Full Changelog**: https://github.com/pymanopt/pymanopt/compare/2.1.1...2.2.0

What's Changed
* Reset random seed for tests by nkoep in https://github.com/pymanopt/pymanopt/pull/216
* Drop support for python 3.6, add 3.10 by nkoep in https://github.com/pymanopt/pymanopt/pull/225
* Add CodeQL workflow for GitHub code scanning by lgtm-com in https://github.com/pymanopt/pymanopt/pull/222
* Migrate configs to setup.cfg by nkoep in https://github.com/pymanopt/pymanopt/pull/214
* Migrate to pytest by nkoep in https://github.com/pymanopt/pymanopt/pull/227
* Do not attempt to push to pypi test mirror by nkoep in https://github.com/pymanopt/pymanopt/pull/226

New Contributors
* lgtm-com made their first contribution in https://github.com/pymanopt/pymanopt/pull/222

**Full Changelog**: https://github.com/pymanopt/pymanopt/compare/2.0.1...2.1.0