Add Python 3.14 to CI workflow matrix

Author: pgleeson

.github/workflows/ci.yml

@@ -14,7 +14,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13","3.14"]
         runs-on: [ubuntu-latest, windows-latest, macos-latest]
         exclude:
           - runs-on: macos-latest