add testing with PyPy 3.10

Author: hcollins-sunrise

.github/workflows/poetry-build.yml

@@ -12,7 +12,7 @@ jobs:
       contents: write
     strategy:
       matrix:
-        python-version: [ 3.11, 3.12 ]
+        python-version: [ "3.11", "3.12", "pypy3.10"]
 
     runs-on: ubuntu-latest