Revert "✔ Test on Python 3.13"

This reverts commit 0d5c6d5.

.github/workflows/test.yml

@@ -25,7 +25,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: [ "3.8", "3.9", "3.10", "3.11", "3.12", "3.13" ]
+        python-version: [ "3.8", "3.9", "3.10", "3.11", "3.12" ]
 
     runs-on: "ubuntu-latest"
 
@@ -34,7 +34,6 @@ jobs:
         uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python-version }}
-          allow-prereleases: true
 
       - name: Checkout
         uses: actions/checkout@v3