feat: Add Amazon SES inbound email support (#12893)

## Summary
- add AWS ActionMailbox SES gems
- document SES as incoming email provider
- note SES option in configuration

## Testing
- `bundle exec rubocop config/initializers/mailer.rb
config/environments/production.rb Gemfile`


------
[Codex
Task](https://chatgpt.com/codex/tasks/task_e_68bbb7d482288326b8f04bb795af0322)

---------

Co-authored-by: Pranav <pranav@chatwoot.com>
Co-authored-by: Vinay Keerthi <11478411+stonecharioteer@users.noreply.github.com>

Gemfile.lock

@@ -136,9 +136,13 @@ GEM
     audited (5.4.1)
       activerecord (>= 5.0, < 7.7)
       activesupport (>= 5.0, < 7.7)
+    aws-actionmailbox-ses (0.1.0)
+      actionmailbox (>= 7.1.0)
+      aws-sdk-s3 (~> 1, >= 1.123.0)
+      aws-sdk-sns (~> 1, >= 1.61.0)
     aws-eventstream (1.2.0)
     aws-partitions (1.760.0)
-    aws-sdk-core (3.171.1)
+    aws-sdk-core (3.188.0)
       aws-eventstream (~> 1, >= 1.0.2)
       aws-partitions (~> 1, >= 1.651.0)
       aws-sigv4 (~> 1.5)
@@ -146,10 +150,13 @@ GEM
     aws-sdk-kms (1.64.0)
       aws-sdk-core (~> 3, >= 3.165.0)
       aws-sigv4 (~> 1.1)
-    aws-sdk-s3 (1.122.0)
-      aws-sdk-core (~> 3, >= 3.165.0)
+    aws-sdk-s3 (1.126.0)
+      aws-sdk-core (~> 3, >= 3.174.0)
       aws-sdk-kms (~> 1)
       aws-sigv4 (~> 1.4)
+    aws-sdk-sns (1.70.0)
+      aws-sdk-core (~> 3, >= 3.188.0)
+      aws-sigv4 (~> 1.1)
     aws-sigv4 (1.5.2)
       aws-eventstream (~> 1, >= 1.0.2)
     barnes (0.0.9)
@@ -995,6 +1002,7 @@ DEPENDENCIES
   annotate
   attr_extras
   audited (~> 5.4, >= 5.4.1)
+  aws-actionmailbox-ses (~> 0)
   aws-sdk-s3
   azure-storage-blob!
   barnes