chore(release): 1.4.0 [skip ci]

# [1.4.0](https://gitlab.ics.muni.cz/perun-proxy-aai/simplesamlphp/simplesamlphp-module-campusmultiauth/compare/v1.3.0...v1.4.0) (2022-09-24)

### Features

* aarc_discovery_hint ([7e3a950a](https://gitlab.ics.muni.cz/perun-proxy-aai/simplesamlphp/simplesamlphp-module-campusmultiauth/commit/7e3a950a1d34ee40ce8413486c6a7eb6efaeb3af))