fix: declare typing_extensions as a runtime dependency

Generated model files across the SDK import `TypeAlias` (and other
symbols) from `typing_extensions`, but it was not declared in
pyproject.toml. On Python 3.10–3.12 it was pulled in transitively, but
on 3.13/3.14 the smoke test against the built wheel failed with
`No module named 'typing_extensions'`. Add it to runtime deps and
assert on it in the smoke test so this regresses loudly.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: gjtorikian

pyproject.toml

@@ -7,7 +7,12 @@ license = "MIT"
 authors = [{ name = "WorkOS", email = "sdk@workos.com" }]
 requires-python = ">=3.10"
 
-dependencies = ["cryptography~=46.0", "httpx~=0.28", "pyjwt~=2.12"]
+dependencies = [
+  "cryptography~=46.0",
+  "httpx~=0.28",
+  "pyjwt~=2.12",
+  "typing_extensions~=4.0",
+]
 
 [project.urls]
 Homepage = "https://workos.com/docs/sdks/python"

tests/smoke_test.py

@@ -205,8 +205,11 @@ def test_dependencies_available() -> None:
     import cryptography
     import httpx
     import jwt
+    import typing_extensions
 
-    print("✓ Core dependencies available (httpx, cryptography, pyjwt)")
+    print(
+        "✓ Core dependencies available (httpx, cryptography, pyjwt, typing_extensions)"
+    )
 
 
 def main() -> int: