Disabled python 3.13, Github actions does not support it yet

Author: wolph

.github/workflows/main.yml

@@ -11,7 +11,7 @@ jobs:
     timeout-minutes: 4
     strategy:
       matrix:
-        python-version: ['3.9', '3.10', '3.11', '3.12', '3.13']
+        python-version: ['3.9', '3.10', '3.11', '3.12'] # Maybe soon?, '3.13']
 
     steps:
       - uses: actions/checkout@v3