ENH: Use latest version (v0.9.5) of setup-pixi GitHub action

Author: dzenanz

.github/workflows/pixi.yml

@@ -131,7 +131,7 @@ jobs:
             echo "ExternalData_OBJECT_STORES=${{ runner.temp }}/ExternalData" >> "$GITHUB_ENV"
 
         - name: Set up Pixi
-          uses: prefix-dev/setup-pixi@v0.8.1
+          uses: prefix-dev/setup-pixi@v0.9.5
 
         - name: Configure
           run: pixi run configure-ci