Merge branch 'release-2.9' into 'master'
Release 2.9 It is that time of the year again. See [CHANGELOG.md](https://gitlab.federez.net/re2o/re2o/-/blob/release-2.9/CHANGELOG.md). Many thanks to the people who made Re2o2.9 possible, thanks to their 575 commits in almost one year of development! * Jean-Romain Garnier * Gabriel Detraz * Hugo Levy-Falk * Arthur Grisel-Davy * Corentin Canebier * Yoann Piétri * Jean-Marie Mineau * Leila Bekaddour * Maxime Bombar See merge request re2o/re2o!592