CI: actually bump pixi version (#561)

Author: lucascolley

.github/workflows/ci.yml

@@ -59,7 +59,7 @@ jobs:
 
       - uses: prefix-dev/setup-pixi@82d477f15f3a381dbcc8adc1206ce643fe110fb7 # v0.9.3
         with:
-          pixi-version: v0.58.0
+          pixi-version: v0.62.0
           cache: true
           environments: ${{ matrix.environment }}