Update dependency mysql to v8

Author: renovate-bot

docker-compose.inpsec.disabledtest.yml

@@ -35,7 +35,7 @@ services:
       - mysql
 
   mysql:
-    image: mysql:5.7
+    image: mysql:8.0
     restart: always
     environment:
       MYSQL_DATABASE: exampledb

docker-compose.minio.yaml

@@ -47,7 +47,7 @@ services:
       - minio
 
   mysql:
-    image: mysql:5.7
+    image: mysql:8.0
     restart: always
     environment:
       MYSQL_DATABASE: exampledb

docker-compose.yaml

@@ -38,7 +38,7 @@ services:
       - mysql
 
   mysql:
-    image: mysql:5.7
+    image: mysql:8.0
     restart: always
     environment:
       MYSQL_DATABASE: exampledb