エラー：Cannot start service db: Ports are not available: listen tcp 0.0.0.0:3306: bind: address already in use

##環境
Docker version 20.10.7
docker-compose version 1.29.2

##状況

$ docker-compose upした際に「すでにport3306は使われている」というエラーを吐いた

$ docker-compose up
Creating XXXXXX_db_1    ... error
Creating XXXXXX_redis_1 ... 

Creating XXXXXX_redis_1 ... done
Creating XXXXXX_worker_1 ... done

ERROR: for db  Cannot start service db: Ports are not available: listen tcp 0.0.0.0:3306: bind: address already in use
ERROR: Encountered errors while bringing up the project.

##解決方法
port3306が開いてるDBを確認してkill

$ sudo lsof -i -P | grep "LISTEN"
mysqld     122    _mysql   24u  IPv6 0x4f20f24da9e855fb      0t0    TCP *:3306 (LISTEN)

$ sudo kill 122