boring-nginx: change pid path

boring-nginx/nginx.conf

@@ -1,5 +1,5 @@
 worker_processes auto;
-pid /var/run/nginx.pid;
+pid /tmp/nginx.pid;
 daemon off;
 pcre_jit on;
 

boring-nginx/run.sh

@@ -1,5 +1,4 @@
 #!/bin/sh
-touch /var/run/nginx.pid
-chown -R $UID:$GID /etc/nginx /var/log/nginx /var/run/nginx.pid /sites-enabled /conf.d /certs /www /tmp
+chown -R $UID:$GID /etc/nginx /var/log/nginx /sites-enabled /conf.d /certs /www /tmp
 chmod -R 700 /certs
 exec su-exec $UID:$GID /sbin/tini -- nginx