build: skip windows PyPy 3.9 and 3.10 for 7.3.15

Author: nedbat

.github/workflows/testsuite.yml

@@ -53,6 +53,14 @@ jobs:
           - "pypy-3.8"
           - "pypy-3.9"
           - "pypy-3.10"
+        exclude:
+          # Windows pypy 3.9 and 3.10 get stuck with PyPy 7.3.15.  I hope to
+          # unstick them, but I don't want that to block all other progress, so 
+          # skip them for now.
+          - os: windows
+            python-version: "pypy-3.9"
+          - os: windows
+            python-version: "pypy-3.10"
       fail-fast: false
 
     steps: