Fix OS version

Author: masaccio

.github/workflows/build-and-publish.yml

@@ -15,7 +15,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: ubuntu-latest
+        os: [ubuntu-latest]
         python-version: ["3.11"]
     steps:
       - name: Checkout repo with submodules