chore(release): 1.9.1 [skip ci]

## [1.9.1](https://gitlab.ics.muni.cz/perun-proxy-aai/python/perun-proxy-utils/compare/v1.9.0...v1.9.1) (2023-08-23)

### Bug Fixes

* check_php_syntax to work with containers ([5cfec908](https://gitlab.ics.muni.cz/perun-proxy-aai/python/perun-proxy-utils/commit/5cfec908071110ae676cef899014ee1e8ec24481))