CI: remove Python 3.14 (l9format not compatible yet)

Author: dannywillems

.github/workflows/actions.yml

@@ -6,7 +6,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.13", "3.14"]
+        python-version: ["3.13"]
         poetry-version: ["2.3.1"]
         os: [ubuntu-latest, macos-latest, windows-latest]
     runs-on: ${{ matrix.os }}