install pydantic 1.12.0 alpha1 when testing on python 3.14

.github/workflows/test.yml

@@ -85,8 +85,11 @@ jobs:
         if: matrix.pydantic-version == 'pydantic-v1'
         run: uv pip install "pydantic>=1.10.0,<2.0.0"
       - name: Install Pydantic v2
-        if: matrix.pydantic-version == 'pydantic-v2'
+        if: matrix.pydantic-version == 'pydantic-v2' && matrix.python-version != '3.14'
         run: uv pip install --upgrade "pydantic>=2.0.2,<3.0.0"
+      - name: Install Pydantic v2.12.0a1 for Python 3.14
+        if: matrix.pydantic-version == 'pydantic-v2' && matrix.python-version == '3.14'
+        run: uv pip install --upgrade "pydantic==2.12.0a1"
       # TODO: Remove this once Python 3.8 is no longer supported
       - name: Install older AnyIO in Python 3.8
         if: matrix.python-version == '3.8'