Bump hydra-core from 1.3.2 to 1.3.4 in /docs

Bumps [hydra-core](https://github.com/facebookresearch/hydra) from 1.3.2 to 1.3.4.
- [Release notes](https://github.com/facebookresearch/hydra/releases)
- [Changelog](https://github.com/hydra-ecosystem/hydra/blob/v1.3.4/NEWS.md)
- [Commits](hydra-ecosystem/hydra@v1.3.2...v1.3.4)

---
updated-dependencies:
- dependency-name: hydra-core
  dependency-version: 1.3.4
  dependency-type: direct:production
...

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

Author: dependabot[bot]

docs/requirements.txt

@@ -1,7 +1,7 @@
 furo==2024.7.18
 sphinx==7.4.7
 sphinxcontrib-mermaid==0.9.2
-hydra-core==1.3.2
+hydra-core==1.3.4
 scipy
 soundfile
 # C++