Bump landau from 1.4 to 1.5.2

Bumps [landau](https://github.com/eisenforschung/landau) from 1.4 to 1.5.2.
- [Release notes](https://github.com/eisenforschung/landau/releases)
- [Commits](eisenforschung/landau@1.4...1.5.2)

---
updated-dependencies:
- dependency-name: landau
  dependency-version: 1.5.2
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

requirements.txt

@@ -32,4 +32,4 @@ llama-index==0.14.7
 netcdf4==1.7.2
 bokeh==3.8.1
 dscribe==2.1.2
-landau==1.4
+landau==1.5.2