chore(release): 12.1.0 [skip ci]

# [12.1.0](https://gitlab.ics.muni.cz/perun-proxy-aai/simplesamlphp/simplesamlphp-module-authswitcher/compare/v12.0.1...v12.1.0) (2023-10-09)

### Features

* force MFA based on proxyMFAEnforced state attribute ([68db385c](https://gitlab.ics.muni.cz/perun-proxy-aai/simplesamlphp/simplesamlphp-module-authswitcher/commit/68db385ce4f6c2a3a4c42ce1284714fbcd26b42a))