Latest ubuntu on github runner doesn't have 3.14

ubuntu-latest point to 24.04, will look into if a ppa make 3.14
available, but of the moment, happy to just remove testing against this
version of python.

Author: php1ic

.github/workflows/tests.yml

@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.10', '3.11', '3.12', '3.13', '3.14']
+        python-version: ['3.10', '3.11', '3.12', '3.13']
 
     steps:
     - name: Checkout repository