fixed ruby 3 support errors

Dockerfile

@@ -1,4 +1,4 @@
-FROM internetee/ruby:2.7-buster
+FROM internetee/ruby:3.0-buster
 
 RUN mkdir -p /opt/webapps/app/tmp/pids
 WORKDIR /opt/webapps/app

app/controllers/epp/base_controller.rb

@@ -104,8 +104,8 @@ module Epp
       render_epp_response '/epp/error'
     end
 
-    def render_epp_response(*args)
-      @response = render_to_string(*args, formats: [:xml])
+    def render_epp_response(template)
+      @response = render_to_string(template, formats: [:xml])
       render xml: @response
       write_to_epp_log
     end

app/controllers/repp/v1/contacts_controller.rb

@@ -58,7 +58,7 @@ module Repp
           return
         end
 
-        render_success(create_update_success_body)
+        render_success(**create_update_success_body)
       end
 
       api :DELETE, '/repp/v1/contacts/:contact_code'

app/models/concerns/epp_errors.rb

@@ -121,7 +121,7 @@ module EppErrors
     err = { code: code, msg: t }
     val = check_for_status(code, obj, val)
     err[:value] = { val: val, obj: obj } if val.present?
-    self.errors.add(:epp_errors, err)
+    self.errors.add(:epp_errors, **err)
   end
 
   def check_for_status(code, obj, val)