Update pixi verison on ci

Author: EtienneAr

.github/workflows/macos-linux-pixi.yml

@@ -45,9 +45,9 @@ jobs:
         key: ccache-macos-linux-pixi-${{ matrix.os }}-${{ matrix.build_type }}-${{ github.sha }}
         restore-keys: ccache-macos-linux-pixi-${{ matrix.os }}-${{ matrix.build_type }}-
 
-    - uses: prefix-dev/setup-pixi@v0.8.1
+    - uses: prefix-dev/setup-pixi@v0.9.1
       with:
-        pixi-version: v0.39.2
+        pixi-version: v0.56.0
         cache: true
         environments: ${{ matrix.environment }}