[Git] Ignore shared namespace file

.gitignore

@@ -27,6 +27,7 @@ data/conf/dovecot/acl_anyone
 data/conf/dovecot/mail_plugins*
 data/conf/dovecot/sogo-sso.conf
 data/conf/dovecot/extra.conf
+data/conf/dovecot/shared_namespace.conf
 data/conf/rspamd/custom/*
 data/conf/portainer/
 data/gitea/