Test on Python 3.14

Author: levitsky

.github/workflows/pythonpackage.yml

@@ -16,7 +16,7 @@ jobs:
     runs-on: 'ubuntu-24.04'
     strategy:
       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']
 
     steps:
     - uses: actions/checkout@v5
@@ -39,7 +39,7 @@ jobs:
   tests-multiplatform:
     strategy:
       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']
         os: ['macos-latest', 'windows-latest']
 
     runs-on: ${{ matrix.os }}