docker: sync local time and timezone to mysql_tests block

docker/blocks/mysql_tests/docker-compose.yaml

@@ -7,4 +7,7 @@
       MYSQL_PASSWORD: password
     ports:
       - "3306:3306"
+    volumes:
+      - /etc/localtime:/etc/localtime:ro
+      - /etc/timezone:/etc/timezone:ro
     tmpfs: /var/lib/mysql:rw