Bump sphinx-multiversion-scylla from 0.3.3 to 0.3.4 in /docs

Bumps [sphinx-multiversion-scylla](https://holzhaus.github.io/sphinx-multiversion/) from 0.3.3 to 0.3.4.

---
updated-dependencies:
- dependency-name: sphinx-multiversion-scylla
  dependency-version: 0.3.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

docs/poetry.lock

@@ -12,7 +12,7 @@ sphinx-scylladb-theme = "^1.8.9"
 myst-parser = "^3.0.1"
 sphinx-autobuild = "^2024.4.19"
 Sphinx = "^7.3.7"
-sphinx-multiversion-scylla = "^0.3.3"
+sphinx-multiversion-scylla = "^0.3.4"
 sphinx-sitemap = "^2.6.0"
 redirects_cli ="^0.1.3"