Upgrade Gitea to 1.17.0

Also adds a new Nginx directive to allow larger uploads to the Docker
registry endpoints.

closes #422

site-cookbooks/kosmos_gitea/templates/default/nginx_conf_web.erb

@@ -31,6 +31,14 @@ server {
     expires 30d;
   }
 
+  # Docker registry
+  location /v2/ {
+    client_max_body_size 0;
+    proxy_buffers 1024 8k;
+    proxy_pass http://_gitea_web;
+    proxy_http_version 1.1;
+  }
+
   location / {
     proxy_buffers 1024 8k;
     proxy_pass http://_gitea_web;