Draft: Resolve "Upgrade email_reply_trimmer to latest version to 0.1.13"

What does this MR do and why?

Upgrade to 0.1.13. Diffs:

• https://my.diffend.io/gems/email_reply_trimmer/0.1.12/0.1.13
• https://my.diffend.io/gems/email_reply_trimmer/0.1.11/0.1.12
• https://my.diffend.io/gems/email_reply_trimmer/0.1.10/0.1.11
• https://my.diffend.io/gems/email_reply_trimmer/0.1.9/0.1.10
• https://my.diffend.io/gems/email_reply_trimmer/0.1.8/0.1.9
• https://my.diffend.io/gems/email_reply_trimmer/0.1.7/0.1.8
• https://my.diffend.io/gems/email_reply_trimmer/0.1.6/0.1.7

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.

Related to #412480