Merge #1189 (update pretalx version)

Author: martey

requirements/production.txt

@@ -14,7 +14,7 @@ easy-thumbnails==2.8.1
 gunicorn==20.1.0
 pinax-eventlog==5.1.1
 pip==22.2.1
--e git+https://github.com/pretalx/pretalx@a96649fce4066c741ddf3f96b5ae88fac7ed4fea#egg=pretalx[redis]&subdirectory=src
+-e git+https://github.com/pretalx/pretalx@27aafeba79e9f33fc07e148b141773180e938883#egg=pretalx[redis]&subdirectory=src
 psycopg2==2.9.3
 pytz==2022.1
 sentry-sdk==1.9.0