Skip Python 3.14 on CI since unavailable

Author: jacebrowning

.github/workflows/execute-tests.yml

@@ -21,7 +21,7 @@ jobs:
     strategy:
       fail-fast: true
       matrix:
-        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13", "3.14"]
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
     name: Python ${{ matrix.python-version }}
 
     defaults: