Fix .env.example

This app doesn't need ANY database.

.env.example

@@ -19,24 +19,24 @@ LOG_STACK=single
 LOG_DEPRECATIONS_CHANNEL=null
 LOG_LEVEL=debug
 
-DB_CONNECTION=sqlite
+#DB_CONNECTION=sqlite
 # DB_HOST=127.0.0.1
 # DB_PORT=3306
 # DB_DATABASE=laravel
 # DB_USERNAME=root
 # DB_PASSWORD=
 
-SESSION_DRIVER=database
+SESSION_DRIVER=file
 SESSION_LIFETIME=120
 SESSION_ENCRYPT=false
 SESSION_PATH=/
 SESSION_DOMAIN=null
 
 BROADCAST_CONNECTION=log
 FILESYSTEM_DISK=local
-QUEUE_CONNECTION=database
+QUEUE_CONNECTION=sync
 
-CACHE_STORE=database
+CACHE_STORE=file
 CACHE_PREFIX=
 
 MEMCACHED_HOST=127.0.0.1