Update publish-docs.yml to use Python 3.11

Author: brettcannon

.github/workflows/publish-docs.yml

@@ -25,7 +25,7 @@ jobs:
 
       - uses: actions/setup-python@v4
         with:
-          python-version: "3.x"
+          python-version: "3.11"
 
       - uses: actions-rs/toolchain@v1
         with: