Update dependency django-anymail to v10.2 - autoclosed

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
django-anymail (changelog)	10.1 -> 10.2

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Release Notes

anymail/django-anymail (django-anymail)

### [`v10.2`](https://togithub.com/anymail/django-anymail/blob/HEAD/CHANGELOG.rst#v102) [Compare Source](https://togithub.com/anymail/django-anymail/compare/v10.1...v10.2) *2023-10-25* Features ``` * **Resend**: Add support for this ESP (`docs `__). Fixes ~~~~~ * Correctly merge global ``SEND_DEFAULTS`` with message ``esp_extra`` for ESP APIs that use a nested structure (including Mandrill and SparkPost). Clarify intent of global defaults merging code for other message properties. (Thanks to `@mounirmesselmeni`_ for reporting the issue.) Other ~~~~~ * **Mailgun (docs):** Clarify account-level "Mailgun API keys" vs. domain-level "sending API keys." (Thanks to `@sdarwin`_ for reporting the issue.) * Test against prerelease versions of Django 5.0 and Python 3.12. ```

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