synapse workers nginx rule: add client_max_body_size on media endpoints

so transfer limits are properly set in accord to the relevant setting
https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/456#issuecomment-719996778

roles/matrix-nginx-proxy/templates/nginx/conf.d/matrix-synapse.conf.j2

@@ -124,6 +124,10 @@
 				proxy_pass http://media_repository_upstream$request_uri;
 				proxy_set_header Host $host;
 				proxy_set_header X-Forwarded-For $remote_addr;
+
+				client_body_buffer_size 25M;
+				client_max_body_size {{ matrix_nginx_proxy_proxy_matrix_client_api_client_max_body_size_mb }}M;
+				proxy_max_temp_file_size 0;
 			}
 			{% endfor %}
 		{% endif %}
@@ -379,6 +383,10 @@ server {
 				proxy_pass http://media_repository_upstream$request_uri;
 				proxy_set_header Host $host;
 				proxy_set_header X-Forwarded-For $remote_addr;
+
+				client_body_buffer_size 25M;
+				client_max_body_size {{ matrix_nginx_proxy_proxy_matrix_federation_api_client_max_body_size_mb }}M;
+				proxy_max_temp_file_size 0;
 			}
 			{% endfor %}
 		{% endif %}