Add python 3.13 to check.yml

Author: VeskeR

.github/workflows/check.yml

@@ -18,7 +18,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ['3.7', '3.8', '3.9', '3.10', '3.11', '3.12']
+        python-version: ['3.7', '3.8', '3.9', '3.10', '3.11', '3.12', '3.13']
     steps:
     - uses: actions/checkout@v2
       with: