Update ci.yaml

Author: JLBegin

.github/workflows/ci.yaml

@@ -8,7 +8,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ ubuntu-latest, macos-13, macos-latest, windows-latest ]
-        python-version: [ "3.9", "3.12" ]
+        python-version: [ "3.9", "3.10", "3.11", "3.12", "3.13" ]
 
     runs-on: ${{ matrix.os }}