mariadb: Add missing logrotate file

roles/mariadb/files/mariadb-querylog.logrotate

@@ -0,0 +1,17 @@
+/var/log/mariadb/mariadb-query.log {
+        create 600 mysql mysql
+        su mysql mysql
+        notifempty
+        daily
+        rotate 3
+        missingok
+        compress
+        sharedscripts
+    postrotate
+	# just if mariadbd is really running
+        if [ -e /run/mariadb/mariadb.pid ]
+        then
+           kill -1 $(</run/mariadb/mariadb.pid)
+        fi
+    endscript
+}