Removed Python 3.12 from CI/CD as Sympy has version issues

Author: m-messer

.github/workflows/staging-deploy.yml

@@ -21,7 +21,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.8", "3.12"]
+        python-version: ["3.8"]
     steps:
       - name: Checkout
         uses: actions/checkout@v4