PyPy 3.8 is not supported anymore

Author: hynek

.github/workflows/main.yml

@@ -14,7 +14,7 @@ jobs:
 
     strategy:
       matrix:
-        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "pypy-3.8"]
+        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "pypy-3.10"]
       fail-fast: false
 
     steps: