bump pixelaw to 0.5.6 and fixed test

Author: thiscaspar

.github/workflows/ci-contracts.yml

@@ -28,6 +28,6 @@ jobs:
       - uses: asdf-vm/actions/setup@v3
       - run: |
           asdf plugin add dojo https://github.com/dojoengine/asdf-dojo
-          asdf install dojo 1.0.0-alpha.17
-          asdf global dojo 1.0.0-alpha.17
+          asdf install dojo 1.0.0
+          asdf global dojo 1.0.0
           sozo test