Bump django-anymail from 14.0 to 15.1

[dependabot]

Bumps django-anymail from 14.0 to 15.1.

Release notes

Sourced from django-anymail's releases.

v15.1

Changelog

v15.0

Changelog

Changelog

Sourced from django-anymail's changelog.

v15.1

2026-07-30

Fixes

* **Amazon SES, Brevo:** Fix ``InvalidMailer`` error about "Unknown options"
  when used with Django 6.1 ``MAILERS`` setting.

Postmark: Raise an unsupported feature error when merge_data or

merge_global_data is used without a template_id. Anymail passes that

data to Postmark in its TemplateModel field, which is silently ignored

when sending through a non-template API. (Thanks to @slinkymanbyday_ for

reporting the issue and @Sanjays2402_ for the fix.)

Other

• Test against prerelease versions of Django 6.1.

Deprecations

* Support for ``fail_silently`` in Anymail's email backends is being phased out,
  matching Django's deprecation of the feature. Anymail will issue a deprecation
  warning when ``fail_silently`` is used. Support for it will be dropped in a
  future release when Django 6.2 support is discontinued.
See Replacing fail_silently <https://docs.djangoproject.com/en/6.1/howto/mailers-migration/#migrating-to-mailers-fail-silently>_

in Django's documentation for recommendations.
v15.0
2026-04-18
Breaking changes

• Require Django 5.0 or later and Python 3.10 or later. (Thanks to @terencehonles_.)

Features

* **Resend:** Add support for inbound email. (Thanks to `@btimby`_.)
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Commits

• 8c40cc4 Release 15.1
• 7e8b81b Postmark: Handle merge_data without template_id as unsupported
• d973c84 Update URLs to Mailjet's documentation
• 1671948 Update readme for Django 6.1
• 0dfc0aa Add 'docs-watch' tox environment for sphinx-autobuild
• 232477a Deprecate fail_silently
• e567452 Improve support for MAILERS configuration
• e670d78 Amazon SES, Brevo: Fix compatibility with Django 6.1 MAILERS
• 15b57e2 Update test matrix for Django 6.1 pre-release
• 171fa38 Change black and isort to target Python 3.10
• Additional commits viewable in compare view