laravel jetstreamでエラー(SQLSTATE[HY000] [2002] Connection refused)

jetstream、livewireをインストール後migrateを行いlocalhostにアクセス。
login、registerの画面が表示されるのですがボタンを押すと下記のエラーが発生します。

Illuminate\Database\QueryException
SQLSTATE[HY000] [2002] Connection refused (SQL: select count(*) as aggregate from users where email = test@mail.comn)
http://localhost:8573/register

環境

windows
laravel8
docker
mysql

コード
.env
DB_CONNECTION=mysql
DB_HOST=mysql
DB_PORT=3308
DB_DATABASE=klstock
DB_USERNAME=sail
DB_PASSWORD=password

database.php
'mysql' => [
'driver' => 'mysql',
'url' => env('DATABASE_URL'),
'host' => env('DB_HOST', '127.0.0.1'),
'port' => env('DB_PORT', '3308'),
'database' => env('DB_DATABASE', 'forge'),
'username' => env('DB_USERNAME', 'forge'),
'password' => env('DB_PASSWORD', ''),
'unix_socket' => env('DB_SOCKET', ''),
'charset' => 'utf8mb4',
'collation' => 'utf8mb4_unicode_ci',
'prefix' => '',
'prefix_indexes' => true,
'strict' => true,
'engine' => null,
'options' => extension_loaded('pdo_mysql') ? array_filter([
PDO::MYSQL_ATTR_SSL_CA => env('MYSQL_ATTR_SSL_CA'),
]) : [],
],

docker-compose.yml
mysql:
image: 'mysql:8.0'
ports:
- '${FORWARD_DB_PORT:-3308}:3306'
environment:
MYSQL_ROOT_PASSWORD: '${DB_PASSWORD}'
MYSQL_DATABASE: 'klstock'
MYSQL_USER: 'sail'
MYSQL_PASSWORD: 'password'
MYSQL_ALLOW_EMPTY_PASSWORD: 'yes'
volumes:
- 'sailmysql:/var/lib/mysql'
networks:
- sail
healthcheck:
test: ["CMD", "mysqladmin", "ping", "-p${DB_PASSWORD}"]
retries: 3
timeout: 5s