Bump mypy-strict-kwargs to 2026.8.25

2026.8.20.1 lost the value type behind ``SomeEnum.value`` and reported
decorators such as ``@beartype`` as positional calls.  Both are fixed in
2026.8.25, so the ``ignore_names`` opt-outs added for them are no longer
needed.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01CACFJDTrtojHAEbXRGoxAg

Author: adamtheturtle

pyproject.toml

@@ -47,7 +47,7 @@ optional-dependencies.dev = [
     "furo==2025.12.19",
     "interrogate==1.7.0",
     "mypy[faster-cache]==2.3.1",
-    "mypy-strict-kwargs==2026.8.20.1",
+    "mypy-strict-kwargs==2026.8.25",
     "no-defaults==2.1.0",
     "prek==0.4.14",
     "pydocstringformatter==1.0.0",
@@ -468,10 +468,3 @@ whitelines = 1
 [tool.no_defaults]
 private_only = true
 per_file_enforcement."tests/**" = "all"
-
-[tool.mypy_strict_kwargs]
-ignore_names = [
-    "beartype._decor.decorcache.beartype",
-    "_pytest.fixtures.fixture",
-    "pytest_asyncio.plugin.fixture",
-]