chore(deps): bump uv from 0.9.27 to 0.9.28 in /.github/requirements (pyca#14238)

Bumps [uv](https://github.com/astral-sh/uv) from 0.9.27 to 0.9.28.
- [Release notes](https://github.com/astral-sh/uv/releases)
- [Changelog](https://github.com/astral-sh/uv/blob/main/CHANGELOG.md)
- [Commits](astral-sh/uv@0.9.27...0.9.28)

---
updated-dependencies:
- dependency-name: uv
  dependency-version: 0.9.28
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/requirements/uv-requirements.txt

@@ -1,23 +1,23 @@
 # This file was autogenerated by uv via the following command:
 #    uv pip compile --universal --python-version 3.8 --generate-hashes --refresh uv-requirements.in -o uv-requirements.txt
-uv==0.9.27 \
-    --hash=sha256:0c9b2e874f5207a50b852726f3a0740eadf30baf2c7973380d697f4e3166d347 \
-    --hash=sha256:1555ab7bc8501144e8771e54a628eb02cb95f3612d54659bb7132576260feee5 \
-    --hash=sha256:18aab0e19634997366907a9b8a1648e79b0fa34d1b86d8e8ee1e7ba5b9faa6ae \
-    --hash=sha256:33902c95b561ac67d15c339fe1eaf39e068372c7464c79c3bd0e2bf9ee914dcb \
-    --hash=sha256:3f8cf7a50a95ae5cb0366d24edf79d15b3ba380b462af49e3404f9f7b91101c7 \
-    --hash=sha256:463327fb343c3085a3333389d6e5908cb48203b327707790c06bdc8f2ca57b95 \
-    --hash=sha256:4f534ad701ca3fffac4a8e1df2a36930e6a0cbf4dad52aeabc2c3c9e2cbbe65e \
-    --hash=sha256:542731a6f53072e725959a9c839b195048715d840213d9834d36f74fa4249855 \
-    --hash=sha256:5f2393051ed2023cc7d6ff99e41184b7c7bb7da001bc727cd4bee6da96f4a966 \
-    --hash=sha256:79841a2e4df4a32f22fbb0919c3e513226684572fba227b37467ba6404f3fafd \
-    --hash=sha256:79939f7e92d707fb84933509df747d1b88b00d94ebe41f3a1e30916cc33c7307 \
-    --hash=sha256:7e2d4183a0dca7596ea6385e9d5a0a87ada4f71a70aa110e2b22234370b8d8ef \
-    --hash=sha256:8f00158023e77600da602c5f1fa97cd8c2eef987d6aba34c16cf04a3e5a932f4 \
-    --hash=sha256:9147862902b5d40894f78339803225e39b0535c4c04537188de160eb7635e46b \
-    --hash=sha256:a56e0c92da67060d4c86a3b92b2c69e8fb1d61933636764aba16531ddb13f6e3 \
-    --hash=sha256:a662a7df5cc781ae7baa65171b5d488d946ea93e61b7bbeda5a24d21a0cd9003 \
-    --hash=sha256:c331e0445465ea6029e2dd0f5499024e552136c10069fac0ca21708f2aeb1ce6 \
-    --hash=sha256:ce3f16e66a96dcdc63f6ada9f7747686930986d2df104a9dd2d09664b2d870c8 \
-    --hash=sha256:f961c53f83ae6a01e3ffacc584c91044958bc6db003e803c490e106a79981222
+uv==0.9.28 \
+    --hash=sha256:203ab59710c0c1b3c5ecc684f9cfc9264340a69c8706aaa8aea75415779f0d74 \
+    --hash=sha256:253c04b26fb40f74c56ead12ce83db3c018bdefde1fcd1a542bcb88fdca4189c \
+    --hash=sha256:29eefd4642f55954a2b9a40619cde3d02856300f59b8cf63ed1a161ca0ca9b77 \
+    --hash=sha256:2c8fd93c5bee89ed88908215f81a3baa0d2a98e35caf995b97e9c226c1c29340 \
+    --hash=sha256:2dc98e2d6db0dc9a2f65ce4cda6a34283fa80f3fbfff129befdf40ad7a3d1615 \
+    --hash=sha256:3798c486ec627bbd7ca41fa219e997ad403b1f803371edf5c8e75893e46161ba \
+    --hash=sha256:3fe9aa2822d24f6ecec035a06dfdd1fbed570ed40b83a864e71714bad37ddfd3 \
+    --hash=sha256:4155496f624deb753f5ddd80fbe3797587c8480d1250e83c9fd816b4b02e3a41 \
+    --hash=sha256:4d479a1d387b1464ad2c1f960b0b26a9ac1dfba67ea2c6789e9643fe6d1e7b9a \
+    --hash=sha256:58a36bf623c6d36b3d60d3c76eeb7275199d607938786e927d40ce213980059d \
+    --hash=sha256:7b8460a2b624d8ab27cb293a2c9f2393f9efc4e36e0fb886a6c2360e23fb48be \
+    --hash=sha256:97d61cdf2436e83a0f188d55d1974e46679d9a787c3a54cb0a40de717c6bf435 \
+    --hash=sha256:aede961243bb2c0ca09d0e04ea0bf580d7128dd3b14661b79d133be9a5b69894 \
+    --hash=sha256:ba2a320ff77996468789f4b2c573fd766f9330717c440335af8790043b2b3703 \
+    --hash=sha256:c29406e1dc6b1b312c478c76b42b9f94b684855a4c001901b5488bab6ccf4ec7 \
+    --hash=sha256:cbfa56c833caa37b1f14166327fcaf8aa87290451406921eb07296ffef17fef1 \
+    --hash=sha256:d267280b3878aa6ef8e00bff1f11bf61580d0a8bbb69fa95b5d3526d00f77485 \
+    --hash=sha256:d5cb780d5b821f837f63e7fd14e2bf75f01824b4575a1e89639888771bfd9efd \
+    --hash=sha256:e479cc5cbfd72ebdbea3c909d0ab997162e0dfa1ee622b50e2f9dc8d07d4eee3
     # via -r uv-requirements.in