Reflect the current settings to the source

I think we reduced it when it was too much for the machine spec.

Author: k0kubun

recipes/files/etc/apache2/sites-available/git.ruby-lang.org.conf

@@ -32,6 +32,6 @@
                 AllowOverride None
                 Options ExecCGI FollowSymlinks
                 Require all granted
-                RLimitNPROC 25
+                RLimitNPROC 5
         </Directory>
 </VirtualHost>