chore(langchain): cleanup langchain_v1 mypy config (#32809)

Co-authored-by: Mason Daugherty <mason@langchain.dev>

libs/langchain_v1/pyproject.toml

@@ -59,10 +59,10 @@ test = [
 ]
 codespell = ["codespell<3.0.0,>=2.2.0"]
 lint = [
-    "ruff<0.13,>=0.12.11",
-    "mypy>=1.15",
+    "ruff>=0.12.2",
 ]
 typing = [
+    "mypy<0.18,>=1.17.1",
     "types-toml>=0.10.8.20240310",
 ]
 
@@ -88,19 +88,14 @@ exclude = ["tests/integration_tests/examples/non-utf8-encoding.py"]
 line-length = 100
 
 [tool.mypy]
-strict = "True"
-strict_bytes = "True"
-ignore_missing_imports = "True"
+strict = true
+ignore_missing_imports = true
 enable_error_code = "deprecated"
-report_deprecated_as_note = "True"
 exclude = ["tests/unit_tests/agents/*", "tests/integration_tests/agents/*"]
 
 # TODO: activate for 'strict' checking
-disallow_untyped_calls = "False"
-disallow_any_generics = "False"
-disallow_untyped_decorators = "False"
-warn_return_any = "False"
-strict_equality = "False"
+disallow_any_generics = false
+warn_return_any = false
 
 [tool.codespell]
 skip = ".git,*.pdf,*.svg,*.pdf,*.yaml,*.ipynb,poetry.lock,*.min.js,*.css,package-lock.json,example_data,_dist,examples,*.trig"