Install python 3.11 from deadsnakes

Author: Ovenoboyo

.github/workflows/build.yaml

@@ -29,6 +29,7 @@ jobs:
       - name: install dependencies (ubuntu only)
         uses: awalsh128/cache-apt-pkgs-action@latest
         with:
+          add-repository: ppa:deadsnakes/ppa
           packages: make binaryen python3.11 curl
 
       - name: Install extism-js