add user to php-server

docker-compose.yml

@@ -20,6 +20,7 @@ services:
     command: php -S 0.0.0.0:4000 -t /var/www/_site
     ports:
       - ${LH_PORT_p2p:-4001}:4000
+    user: "${RUNNER_UID:-1000}:${RUNNER_GID:-1000}"
     depends_on:
       - jekyll
     volumes: