fix(deps): explicitly pin Pydantic to support Pyodide WASM

Pyodide natively supports pydantic 2.12.5 and pydantic-core 2.41.5
in its built-in registry. By pinning the dependencies to these exact
versions, the browser worker can fetch them natively instead of failing
to compile C-extensions from PyPI. This also eliminates the need for
mock bypasses (try/except blocks) in models.py to handle older
Pydantic versions.

Author: SamuelMarks

pyproject.toml

@@ -9,7 +9,8 @@ description = "OpenAPI 3.2.0 Python Client"
 readme = "README.md"
 requires-python = ">=3.9,<3.14"
 dependencies = [
-    "pydantic>=2.0",
+    "pydantic==2.12.5",
+    "pydantic-core==2.41.5",
     "libcst",
     "urllib3",
     "python-cdd>=0.0.98",

src/openapi_client/cli.py

@@ -154,7 +154,8 @@ def scaffold_package(out_dir: Path):
 name = "generated-client"
 version = "0.0.1"
 dependencies = [
-    "pydantic>=2.0",
+    "pydantic==2.12.5",
+    "pydantic-core==2.41.5",
     "urllib3",
 ]
 """,

src/openapi_client/models.py

@@ -346,11 +346,4 @@ class OpenAPI(OpenAPIBase):
 # Rebuild models due to forward references
 for model in list(locals().values()):
     if isinstance(model, type) and issubclass(model, BaseModel) and model != BaseModel:
-        if hasattr(model, "model_rebuild"):
-            try:
-                model.model_rebuild()
-            except AttributeError:  # pragma: no cover
-                if hasattr(model, "update_forward_refs"):  # pragma: no cover
-                    model.update_forward_refs()  # pragma: no cover
-        elif hasattr(model, "update_forward_refs"):  # pragma: no cover
-            model.update_forward_refs()  # pragma: no cover
+        model.model_rebuild()