feat(CORE): docker permissions and rework (#13454)

- fix docker permissions with mounted volumes on new docker versions (https://github.com/docker/desktop-linux/issues/31)
- fix ac-tools image
- cleanup unused env
- add  `cap_add: SYS_NICE` to allow setting process high priority
- fix ccache in docker
- allow to switch between root user (default) to acore user in any container
- fix cache of the downloaded client data
- split docker github actions in 2 parts
- versioning mysql images
- performance improvements

conf/dist/env.ac

@@ -13,18 +13,6 @@ CTYPE=RelWithDebInfo
 CSCRIPTS=static
 AC_CCACHE=true
 
-#
-# DATABASE
-#
-
-OUTPUT_FOLDER=/azerothcore/var/build/sql/
-
-DB_AUTH_CONF="MYSQL_USER='root'; MYSQL_PASS='password'; MYSQL_HOST='ac-database'; MYSQL_PORT='3306';"
-
-DB_CHARACTERS_CONF="MYSQL_USER='root'; MYSQL_PASS='password'; MYSQL_HOST='ac-database'; MYSQL_PORT='3306';"
-
-DB_WORLD_CONF="MYSQL_USER='root'; MYSQL_PASS='password'; MYSQL_HOST='ac-database'; MYSQL_PORT='3306';"
-
 #
 # SIMPLE RESTARTER
 #