BOTMETA: Add ProxySQL to $team_mysql (#52054)

ProxySQL uses mysql module_utils so becomes part of MySQL WG.

.github/BOTMETA.yml

@@ -194,15 +194,15 @@ files:
   $modules/database/influxdb/: kamsz
   $modules/database/mssql/mssql_db.py: Jmainguy kenichi-ogawa-1988
   $modules/database/mysql/: &mysql
-    keywords: [ mariadb ]
-    labels: mysql
+    keywords: [ mariadb, proxysql ]
+    labels: [ database, mysql ]
     maintainers: $team_mysql
   $modules/database/postgresql/: &postgresql
     keywords: [ postgres, postgresql ]
     labels: postgresql
     maintainers: $team_postgresql
     notified: jbscalia
-  $modules/database/proxysql/: bmildren
+  $modules/database/proxysql/: *mysql
   $modules/database/vertica/: dareko
   $modules/files/acl.py:
     ignored: astorije
@@ -1056,6 +1056,7 @@ files:
   $plugins/doc_fragments/mso.py: *aci
   $plugins/doc_fragments/mysql.py: *mysql
   $plugins/doc_fragments/postgres.py: *postgresql
+  $plugins/doc_fragments/proxysql.py: *mysql
   $plugins/doc_fragments/vultr.py: *vultr
   $plugins/doc_fragments/xenserver.py:
     maintainers: bvitnik
@@ -1366,7 +1367,7 @@ macros:
   team_macos: akasurde dagwieers kyleabenson
   team_manageiq: gtanzillo abellotti zgalor yaacov cben
   team_meraki: dagwieers kbreit
-  team_mysql: bmalynovytch michaelcoburn oneiroi tolland Xyon
+  team_mysql: bmalynovytch bmildren michaelcoburn oneiroi tolland Xyon
   team_netapp: hulquest lmprice ndswartz amit0701 schmots1 carchi8py lonico
   team_netbox: sieben anthony25 fragmentedpacket nikkytub pilou-
   team_netscaler: chiradeep giorgos-nikolopoulos