Bump django from 5.1.6 to 5.1.7 in /api (#374)

Bumps [django](https://github.com/django/django) from 5.1.6 to 5.1.7.
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/django/django/commit/691e9455309e8ce9a29ecafa0a70249a53de2be2"><code>691e945</code></a>
[5.1.x] Bumped version for 5.1.7 release.</li>
<li><a
href="https://github.com/django/django/commit/8dbb44d34271637099258391dfc79df33951b841"><code>8dbb44d</code></a>
[5.1.x] Fixed CVE-2025-26699 -- Mitigated potential DoS in wordwrap
template ...</li>
<li><a
href="https://github.com/django/django/commit/d7dc1f6db046b671fef12e74b900043a8497a5c8"><code>d7dc1f6</code></a>
[5.1.x] Fixed typo in docs/ref/checks.txt.</li>
<li><a
href="https://github.com/django/django/commit/dbd94e7ac968c8b11ddd9e4c0f323c96ba0ed2a1"><code>dbd94e7</code></a>
[5.1.x] Fixed <a
href="https://redirect.github.com/django/django/issues/36227">#36227</a>
-- Fixed outdated PostgreSQL documentation links.</li>
<li><a
href="https://github.com/django/django/commit/cc405e154649af37e1741aeb4438391943133c29"><code>cc405e1</code></a>
[5.1.x] Fixed <a
href="https://redirect.github.com/django/django/issues/36128">#36128</a>
-- Clarified auto-generated unique constraint on m2m thr...</li>
<li><a
href="https://github.com/django/django/commit/03ace756eafc3f7a85f5b84d28ce1e7ce092c018"><code>03ace75</code></a>
[5.1.x] Fixed <a
href="https://redirect.github.com/django/django/issues/36217">#36217</a>
-- Restored pre_save/post_save signal emission via LogEn...</li>
<li><a
href="https://github.com/django/django/commit/76a9f12b6098632b1b326e40fb6eb65500c214e1"><code>76a9f12</code></a>
[5.1.x] Added some heading labels to to docs/topics/cache.txt.</li>
<li><a
href="https://github.com/django/django/commit/558c616c955f7edd89455847cc9081054725cc5a"><code>558c616</code></a>
[5.1.x] Added stub release notes and release date for 5.1.7, 5.0.13, and
4.2.20.</li>
<li><a
href="https://github.com/django/django/commit/11243cc8f3b8a60a73e5b9ed2d9c56b4632fc3a3"><code>11243cc</code></a>
[5.1.x] Added security guideline on reasonable size limitations when
renderin...</li>
<li><a
href="https://github.com/django/django/commit/b80288a16d306c38732706b7847ec7e9dd3f55e8"><code>b80288a</code></a>
[5.1.x] Added security reporting guidelines.</li>
<li>Additional commits viewable in <a
href="https://github.com/django/django/compare/5.1.6...5.1.7">compare
view</a></li>
</ul>
</details>
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api/requirements.txt

@@ -5,7 +5,7 @@ certifi==2025.1.31
 cffi==1.17.1
 charset-normalizer==3.4.1
 cryptography==44.0.2
-Django==5.1.6
+Django==5.1.7
 django-flexi-settings @ git+https://github.com/cedadev/django-flexi-settings.git@68eb74b00e28448279e7d800889d6e39466bf0ce
 django-settings-object @ git+https://github.com/cedadev/django-settings-object.git@2b66c0fc5eae92972df5210b4bc43f7d95ad9ceb
 djangorestframework==3.15.2