poetry bot: bump django-anymail from 8.6 to 10.3

[dependabot]

Bumps django-anymail from 8.6 to 10.3.

Release notes

Sourced from django-anymail's releases.

v10.3

Changelog

v10.2

Changelog

v10.1

Changelog

v10.0

This release switches to modern Python packaging tools, drops compatibility for some seriously outdated environments, and improves Amazon SES and inbound Postmark handling.

Please see the Changelog for breaking changes and other details.

v9.2

Changelog

v9.1

Changelog

v9.0

Changelog

Changelog

Sourced from django-anymail's changelog.

v10.3

2024-03-12

Features

* **Brevo:** Add support for batch sending
  (`docs <https://anymail.dev/en/stable/esps/brevo/#batch-sending-merge-and-esp-templates>`__).


Resend: Add support for batch sending
(docs &lt;https://anymail.dev/en/stable/esps/resend/#batch-sending-merge-and-esp-templates&gt;__).


Unisender Go: Newly supported ESP
(docs &lt;https://anymail.dev/en/stable/esps/unisender_go/&gt;__).
(Thanks to @Arondit_ for the implementation.)


Fixes

* **Mailgun:** Avoid an error when Mailgun posts null delivery-status
  to the event tracking webhook. (Thanks to `@izimobil`_ for the fix.)
Deprecations

</code></pre>

<ul>

<li><strong>Brevo (SendinBlue):</strong> Rename &quot;SendinBlue&quot; to &quot;Brevo&quot; throughout

Anymail's code, reflecting their rebranding.

This affects the email backend path, settings names, and webhook URLs.

The old names will continue to work for now, but are deprecated. See

<code>Updating code from SendinBlue to Brevo &lt;https://anymail.dev/en/stable/esps/brevo/#brevo-rename&amp;gt;&lt;/code>__

for details.</li>

</ul>

<h2>v10.2</h2>

<p><em>2023-10-25</em></p>

<p>Features</p>

<pre><code>

Resend: Add support for this ESP

(docs &amp;lt;https://anymail.dev/en/stable/esps/resend/&amp;gt;__).

Fixes


</tr></table>

... (truncated)

Commits

• fc1bd14 Release 10.3
• 948ab2b Brevo: SendinBlue compatibility
• c7ee59c Brevo: Rename SendinBlue to Brevo
• 14d4516 Unisender Go: fix integration test
• e758579 Docs: fix list spacing
• 5949069 Mailgun: fix webhook error with null delivery-status
• a71a0d9 Unisender Go: new ESP
• a2c0ed6 Docs: fix broken links in search results
• 706fce6 Resend: support batch send
• d2c5628 Docs: update Brevo feature matrix
• Additional commits viewable in compare view

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