Bump maturin from 1.6.0 to 1.9.4

Bumps [maturin](https://github.com/pyo3/maturin) from 1.6.0 to 1.9.4.
- [Release notes](https://github.com/pyo3/maturin/releases)
- [Changelog](https://github.com/PyO3/maturin/blob/main/Changelog.md)
- [Commits](PyO3/maturin@v1.6.0...v1.9.4)

---
updated-dependencies:
- dependency-name: maturin
  dependency-version: 1.9.4
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

pyproject.toml

@@ -52,7 +52,7 @@ dev = [
     "tox==4.30.2",
 ]
 rust = [
-    "maturin==1.6.0"
+    "maturin==1.9.4"
 ]
 gpu = [
     "cupy>=11,<14"