Update CI configuration to include Python 3.13 in the workflow matrix

Author: kocabiyik

.github/workflows/ci.yml

@@ -12,7 +12,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
-        python-version: ['3.9', '3.10', '3.11', '3.12']
+        python-version: ['3.9', '3.10', '3.11', '3.12', '3.13']
         exclude:
           # Reduce matrix for faster CI
           - os: windows-latest