chore(env): added snyk_token to avoid docker warnings locally

Signed-off-by: Jonathan <theflametrooper@gmail.com>

.env.example

@@ -14,4 +14,5 @@ REDIS_PORT=6379
 
 COMPOSE_PROJECT_NAME=musare
 
-FRONTEND_MODE=dev
+FRONTEND_MODE=dev
+SNYK_TOKEN=