Stop running tests on unsupported Python releases.

Author: DavidCEllis

.github/workflows/auto_test.yml

@@ -16,7 +16,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
-        python-version: ["3.14", "3.13", "3.12", "3.11", "3.10"]
+        python-version: ["3.15-dev", "3.14", "3.13", "3.12"]
 
     steps:
     - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2