Add a script to copy the content of the custom folder to a running pod

For now it is only labels, but adding anything supported will work
(robots.txt, public files, templates, etc)

The content will be copied to the /data/gitea/ folder that is a mounted
persistent volume

https://docs.gitea.io/en-us/customizing-gitea/

script/get_secrets

@@ -7,7 +7,7 @@ secret = `kubectl get secret gitea-config -o yaml`
 yaml = YAML.load(secret)
 
 yaml['data'].each do |key, data|
-  filename = File.join('kubernetes', 'custom', 'config', key)
+  filename = File.join('kubernetes', 'config', key)
   File.open(filename, "w+") do |f|
     puts "Writing #{filename}"
     f.write Base64.decode64(data)