chore(release): 1.3.0 [skip ci]

# [1.3.0](https://gitlab.ics.muni.cz/perun-proxy-aai/python/perun-proxy-utils/compare/v1.2.0...v1.3.0) (2023-06-07)

### Features

* check LDAP availability ([ac5eebd9](https://gitlab.ics.muni.cz/perun-proxy-aai/python/perun-proxy-utils/commit/ac5eebd95cdb195f03df5b04eb137d771e793647))