Update python-build-check.yml

Author: philipmat

.github/workflows/python-build-check.yml

@@ -17,7 +17,7 @@ on:
 jobs:
   build:
 
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     strategy:
       matrix:
         python-version: [3.7, 3.8, 3.12]