Bump asgiref from 3.8.1 to 3.9.1 in /requirements (#23679)

Bumps [asgiref](https://github.com/django/asgiref) from 3.8.1 to 3.9.1.
- [Changelog](https://github.com/django/asgiref/blob/main/CHANGELOG.txt)
- [Commits](django/asgiref@3.8.1...3.9.1)

---
updated-dependencies:
- dependency-name: asgiref
  dependency-version: 3.9.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

requirements/prod.txt

@@ -317,9 +317,9 @@ PyJWT==2.10.1 \
 amqp==5.3.1 \
     --hash=sha256:43b3319e1b4e7d1251833a93d672b4af1e40f3d632d479b98661a95f117880a2 \
     --hash=sha256:cddc00c725449522023bad949f70fff7b48f0b1ade74d170a6f10ab044739432
-asgiref==3.8.1 \
-    --hash=sha256:3e1e3ecc849832fe52ccf2cb6686b7a55f82bb1d6aee72a58826471390335e47 \
-    --hash=sha256:c343bd80a0bec947a9860adb4c432ffa7db769836c64238fc34bdc3fec84d590
+asgiref==3.9.1 \
+    --hash=sha256:a5ab6582236218e5ef1648f242fd9f10626cfd4de8dc377db215d5d5098e3142 \
+    --hash=sha256:f3bba7092a48005b5f5bacd747d36ee4a5a61f4a269a6df590b43144355ebd2c
 # billiard is required by celery
 billiard==4.2.1 \
     --hash=sha256:12b641b0c539073fc8d3f5b8b7be998956665c4233c7c1fcd66a7e677c4fb36f \