Update test-n-publish.yml

Remove not supported MacOS 13 from workflow

Author: TomTheBear

.github/workflows/test-n-publish.yml

@@ -28,8 +28,8 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest, macos-13, macos-latest]
-        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
+        os: [ubuntu-latest, macos-latest]
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13", "3.14"]
     runs-on: ${{ matrix.os }}
 
     steps: