Bump adapt-authoring-mailer from 44e9586 to 3a46584

Bumps [adapt-authoring-mailer](https://github.com/adapt-security/adapt-authoring-mailer) from `44e9586` to `3a46584`.
- [Commits](adapt-security/adapt-authoring-mailer@44e9586...3a46584)

---
updated-dependencies:
- dependency-name: adapt-authoring-mailer
  dependency-type: direct:production
...

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