test: test against PyPy 3.11

Author: Rogdham

.github/workflows/build.yml

@@ -25,6 +25,7 @@ jobs:
           - "3.13"
           - "pypy-3.9"
           - "pypy-3.10"
+          - "pypy-3.11"
     steps:
       - uses: actions/checkout@v4
       - name: Setup Python ${{ matrix.python }}

CHANGELOG.md

@@ -21,6 +21,7 @@ For the purpose of determining breaking changes:
 ### :house: Internal
 
 - Update license metadata as per [PEP 639](https://peps.python.org/pep-0639)
+- Add tests for PyPy 3.11
 
 ## [1.1.0] - 2024-10-10