fix: Add custom mysql image in actions with native auth enabled

.github/workflows/build_and_test.yml

@@ -88,7 +88,7 @@ jobs:
                     - 3306
                 options: --health-cmd="mariadb-admin ping -h localhost -u vendure -ppassword" --health-interval=10s --health-timeout=5s --health-retries=3
             mysql:
-                image: mysql:8.0
+                image: vendure/mysql-8-native-auth:latest
                 env:
                     MYSQL_ROOT_PASSWORD: password
                 ports: