Bump prefix-dev/setup-pixi from 0.8.1 to 0.9.3

Bumps [prefix-dev/setup-pixi](https://github.com/prefix-dev/setup-pixi) from 0.8.1 to 0.9.3.
- [Release notes](https://github.com/prefix-dev/setup-pixi/releases)
- [Commits](prefix-dev/setup-pixi@v0.8.1...v0.9.3)

---
updated-dependencies:
- dependency-name: prefix-dev/setup-pixi
  dependency-version: 0.9.3
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

.github/workflows/pixi.yaml

@@ -18,7 +18,7 @@ jobs:
     steps:
       # Pixi is the tool used to create/manage conda environment
       - uses: actions/checkout@v3
-      - uses: prefix-dev/setup-pixi@v0.8.1
+      - uses: prefix-dev/setup-pixi@v0.9.3
         with:
           pixi-version: v0.40.3
       - name: Build