chore: Upgrade rails and ruby versions (#2400)

ruby version: 3.0.2
rails version: 6.1.4

app/services/message_templates/template/email_collect.rb

@@ -7,7 +7,7 @@ class MessageTemplates::Template::EmailCollect
       conversation.messages.create!(email_input_box_template_message_params)
     end
   rescue StandardError => e
-    Raven.capture_exception(e)
+    Sentry.capture_exception(e)
     true
   end
 

app/services/message_templates/template/greeting.rb

@@ -6,7 +6,7 @@ class MessageTemplates::Template::Greeting
       conversation.messages.create!(greeting_message_params)
     end
   rescue StandardError => e
-    Raven.capture_exception(e)
+    Sentry.capture_exception(e)
     true
   end
 

app/services/message_templates/template/out_of_office.rb

@@ -6,7 +6,7 @@ class MessageTemplates::Template::OutOfOffice
       conversation.messages.create!(out_of_office_message_params)
     end
   rescue StandardError => e
-    Raven.capture_exception(e)
+    Sentry.capture_exception(e)
     true
   end