nginx-proxy: increase client_file_size to 100mb

gitea: enable lfs support

nginx-proxy/conf/my_proxy.conf

@@ -0,0 +1 @@
+client_max_body_size 5G;

nginx-proxy/docker-compose.yml

@@ -9,6 +9,7 @@ services:
       - "443:443"
     volumes:
       - conf:/etc/nginx/conf.d
+      - ./conf/my_proxy.conf:/etc/nginx/conf.d/my_proxy.conf
       - vhost:/etc/nginx/vhost.d
       - html:/usr/share/nginx/html
       - certs:/etc/nginx/certs:ro