chore(deps): bump polars in /scratchpad in the scratchpad group

Bumps the scratchpad group in /scratchpad with 1 update: [polars](https://github.com/pola-rs/polars).


Updates `polars` from 1.7.0 to 1.7.1
- [Release notes](https://github.com/pola-rs/polars/releases)
- [Commits](pola-rs/polars@py-1.7.0...py-1.7.1)

---
updated-dependencies:
- dependency-name: polars
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: scratchpad
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

scratchpad/poetry.lock

@@ -9,7 +9,7 @@ packages = [{include = "scratchpad", from = "src"}]
 [tool.poetry.dependencies]
 python = "^3.12"
 pandas = "^2.2.2"
-polars = "^1.7.0"
+polars = "^1.7.1"
 numpy = "^2.1.1"
 
 [tool.poetry.group.dev.dependencies]