chore(release): 3.0.3 [skip ci]

## [3.0.3](https://gitlab.ics.muni.cz/perun-proxy-aai/python/perun-proxygui/compare/v3.0.2...v3.0.3) (2023-09-20)

### Bug Fixes

* prevent double touple during introspection ([c7b40e73](https://gitlab.ics.muni.cz/perun-proxy-aai/python/perun-proxygui/commit/c7b40e7325c77359ec0c3c429a0f86b795c3c0fa))