account for the fact that the ci runner is ancient

Author: DavidBuchanan314

.github/workflows/test.yml

@@ -7,7 +7,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: [ '3.9', '3.10', '3.11', '3.12', '3.13', '3.14', '3.15' ]
+        python-version: [ '3.9', '3.10', '3.11', '3.12', '3.13', '3.14' ]
     name: Python ${{ matrix.python-version }} tests
     steps:
       - uses: actions/checkout@v4