chore(deps): bump wagtail from 7.3.3 to 7.3.4 in /requirements

Bumps [wagtail](https://github.com/wagtail/wagtail) from 7.3.3 to 7.3.4.
- [Release notes](https://github.com/wagtail/wagtail/releases)
- [Changelog](https://github.com/wagtail/wagtail/blob/main/CHANGELOG.txt)
- [Commits](wagtail/wagtail@v7.3.3...v7.3.4)

---
updated-dependencies:
- dependency-name: wagtail
  dependency-version: 7.3.4
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

requirements/prod.txt

@@ -1681,9 +1681,9 @@ urllib3==2.7.0 \
     #   pygithub
     #   requests
     #   sentry-sdk
-wagtail==7.3.3 \
-    --hash=sha256:0beb7efbf21078397eeab69de579a455b3ad0c4d86ef7ce197d2dbb6a6c7be59 \
-    --hash=sha256:2ab1f0984734d623fb90b35d4c0a6be119504b00d9005b036f78eb462ed44713
+wagtail==7.3.4 \
+    --hash=sha256:2eab9f6a872b967a55f2575a38b4f83a3d406a34d5dab456e0a21c91fd57bcca \
+    --hash=sha256:30816255dfbb97238050a6687f04b2b4eb88f5201993c48df36d68fab0a70505
     # via
     #   -r requirements/prod.in
     #   wagtail-link-block