Bump prefix-dev/setup-pixi from 0.4.1 to 0.4.3 (#49)

Bumps [prefix-dev/setup-pixi](https://github.com/prefix-dev/setup-pixi) from 0.4.1 to 0.4.3.
- [Release notes](https://github.com/prefix-dev/setup-pixi/releases)
- [Commits](prefix-dev/setup-pixi@v0.4.1...v0.4.3)

---
updated-dependencies:
- dependency-name: prefix-dev/setup-pixi
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/ci.yml

@@ -29,7 +29,7 @@ jobs:
           - { PYTHON_VERSION: 'python=3.12', POLARS_VERSION: '' }
     steps:
       - uses: actions/checkout@v4
-      - uses: prefix-dev/setup-pixi@v0.4.1
+      - uses: prefix-dev/setup-pixi@v0.4.3
         with:
           run-install: false
       - name: Install dependencies