tec: Ignore autoresponse emails when collecting emails

[marien-probesys]

Related issue(s)

#815

How to test manually

1. With Thunderbird, go to the Parameters, General, and at the very bottom "Configuration editor"
2. Search for mail.compose.other.header and set the header Auto-Submitted
3. Start an email and add the header Auto-Submitted with the value auto-generated (or at least different than no)
4. Send the email to [email protected] with a user that can create tickets
5. Wait for the email collector to collect the emails
6. Verify in the logs that you get a notice message MailboxEmail #2 ignored: detected as auto reply

Do the same with the header X-Autoreply set to yes.

Checklist

• Code is manually tested
• Permissions / authorizations are verified
• New data can be imported
• Interface works on both mobiles and big screens
• Interface works in both light and dark modes
• Interface works on both Firefox and Chrome
• Accessibility has been tested
• Translations are synchronized
• Tests are up to date
• Copyright notices are up to date
• Documentation is up to date
• Pull request has been reviewed and approved