chore: Update pixi setup (#65)

Author: maxrjones

.github/workflows/test.yml

@@ -30,7 +30,8 @@ jobs:
       - uses: actions/checkout@v4
       - uses: prefix-dev/setup-pixi@v0.8.12
         with:
-          pixi-version: v0.49.0
+          pixi-version: v0.63.2
+          cache: true
           environments: ${{ matrix.environment }}
 
       - name: List installed libraries

.gitignore

@@ -82,4 +82,3 @@ tests/.hypothesis
 zarr/version.py
 
 site/
-pixi.lock