chore(release): 1.8.1 [skip ci]

## [1.8.1](https://gitlab.ics.muni.cz/perun-proxy-aai/python/perun-proxy-utils/compare/v1.8.0...v1.8.1) (2023-07-12)

### Bug Fixes

* support for PyYAML 5.4 ([fb0cf119](https://gitlab.ics.muni.cz/perun-proxy-aai/python/perun-proxy-utils/commit/fb0cf119ec7614cbf88df58d390075772819157f))