fix: mutex timeout and error handling (#8770)

Fixes the follow cases 
- The ensure block released the lock even on LockAcquisitionError
- Custom timeout was not allowed

This also refactored the with_lock method, now the key has to be constructed in the parent function itself

Co-authored-by: Sojan Jose <sojan@pepalo.com>

app/jobs/inboxes/fetch_imap_emails_job.rb

@@ -6,7 +6,8 @@ class Inboxes::FetchImapEmailsJob < MutexApplicationJob
   def perform(channel)
     return unless should_fetch_email?(channel)
 
-    with_lock(::Redis::Alfred::EMAIL_MESSAGE_MUTEX, inbox_id: channel.inbox.id) do
+    key = format(::Redis::Alfred::EMAIL_MESSAGE_MUTEX, inbox_id: channel.inbox.id)
+    with_lock(key, 5.minutes) do
       process_email_for_channel(channel)
     end
   rescue *ExceptionList::IMAP_EXCEPTIONS => e