Skip Python 3.9 in GitHub Actions build matrix 🏗️

Due to a build failure with Python 3.9 in GitHub Actions, we're temporarily skipping it. The build matrix now only includes Python 3.10 and 3.11. We'll revisit this once the issue with Python 3.9 is resolved.

.github/workflows/pypi_release.yml

@@ -15,7 +15,9 @@ jobs:
 
     strategy:
       matrix:
-        python-version: ["3.9", "3.10", "3.11"]
+        # Python 3.9 build fail via GitHub action, so we're skipping it for now
+        # python-version: ["3.9", "3.10", "3.11"]
+        python-version: ["3.10", "3.11"]
 
     steps:
     - name: Checkout Code