chore(deps): update dependency mypy to v1.19.0 (#443)

Author: renovate-bot

packages/toolbox-core/pyproject.toml

@@ -45,7 +45,7 @@ Changelog = "https://github.com/googleapis/mcp-toolbox-sdk-python/blob/main/pack
 test = [
     "black[jupyter]==25.11.0",
     "isort==7.0.0",
-    "mypy==1.18.2",
+    "mypy==1.19.0",
     "pytest==9.0.1",
     "pytest-aioresponses==0.3.0",
     "pytest-asyncio==1.3.0",

packages/toolbox-langchain/pyproject.toml

@@ -45,7 +45,7 @@ Changelog = "https://github.com/googleapis/mcp-toolbox-sdk-python/blob/main/pack
 test = [
     "black[jupyter]==25.11.0",
     "isort==7.0.0",
-    "mypy==1.18.2",
+    "mypy==1.19.0",
     "pytest-asyncio==1.3.0",
     "pytest==9.0.1",
     "pytest-cov==7.0.0",

packages/toolbox-llamaindex/pyproject.toml

@@ -45,7 +45,7 @@ Changelog = "https://github.com/googleapis/mcp-toolbox-sdk-python/blob/main/pack
 test = [
     "black[jupyter]==25.11.0",
     "isort==7.0.0",
-    "mypy==1.18.2",
+    "mypy==1.19.0",
     "pytest-asyncio==1.3.0",
     "pytest==9.0.1",
     "pytest-cov==7.0.0",