DB: upgrade mysql to 9.3 and rebuild 8+

db/mysql-8.4/Dockerfile

 ##
 FROM       docker.io/mysql:8.4
-MAINTAINER drupalci
 
 COPY --chmod=644 ./conf/my.cnf /etc/mysql/conf.d/drupalci.cnf
 

db/mysql-8/Dockerfile

 ###
 FROM       docker.io/mysql:8.0-debian
-MAINTAINER drupalci
 
 COPY --chmod=644 ./conf/my.cnf /etc/mysql/conf.d/drupalci.cnf
 

db/mysql-9/Dockerfile

 #
-FROM       docker.io/mysql:9.2
-MAINTAINER drupalci
+FROM       docker.io/mysql:9.3
 
 COPY --chmod=644 ./conf/my.cnf /etc/mysql/conf.d/drupalci.cnf
 

db/mysql-9/conf/my.cnf

@@ -13,7 +13,7 @@ port = 3306
 basedir = /usr
 datadir = /var/lib/mysql
 tmpdir = /tmp
-lc_messages_dir = /usr/share/mysql-8.4
+lc_messages_dir = /usr/share/mysql-9.3
 skip-external-locking
 skip-log-bin