MySQL 8 compatibility

Author: Bizley

.github/workflows/build-mysql.yml

@@ -28,7 +28,7 @@ jobs:
           - 3306/tcp
         options: --health-cmd="mysqladmin ping" --health-interval=10s --health-timeout=5s --health-retries=3
         volumes:
-          - ./tests/docker/scripts:/docker-entrypoint-initdb.d
+          - /tests/docker/scripts:/docker-entrypoint-initdb.d
 
     steps:
       - name: Checkout