Bump the python-uv-lock group with 4 updates

Bumps the python-uv-lock group with 4 updates: [langchain](https://github.com/langchain-ai/langchain), [mcp](https://github.com/modelcontextprotocol/python-sdk), [google-auth](https://github.com/googleapis/google-auth-library-python) and [basedpyright](https://github.com/detachhead/basedpyright).


Updates `langchain` from 1.2.17 to 1.2.18
- [Release notes](https://github.com/langchain-ai/langchain/releases)
- [Commits](langchain-ai/langchain@langchain==1.2.17...langchain==1.2.18)

Updates `mcp` from 1.27.0 to 1.27.1
- [Release notes](https://github.com/modelcontextprotocol/python-sdk/releases)
- [Changelog](https://github.com/modelcontextprotocol/python-sdk/blob/main/RELEASE.md)
- [Commits](modelcontextprotocol/python-sdk@v1.27.0...v1.27.1)

Updates `google-auth` from 2.51.0 to 2.52.0
- [Release notes](https://github.com/googleapis/google-auth-library-python/releases)
- [Changelog](https://github.com/googleapis/google-auth-library-python/blob/main/CHANGELOG.md)
- [Commits](https://github.com/googleapis/google-auth-library-python/commits)

Updates `basedpyright` from 1.39.3 to 1.39.4
- [Release notes](https://github.com/detachhead/basedpyright/releases)
- [Commits](DetachHead/basedpyright@v1.39.3...v1.39.4)

---
updated-dependencies:
- dependency-name: langchain
  dependency-version: 1.2.18
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: python-uv-lock
- dependency-name: mcp
  dependency-version: 1.27.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: python-uv-lock
- dependency-name: google-auth
  dependency-version: 2.52.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: python-uv-lock
- dependency-name: basedpyright
  dependency-version: 1.39.4
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: python-uv-lock
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

pyproject.toml

@@ -33,13 +33,13 @@ dependencies = []
 # Treat the same as NPM's `dependencies`
 [project.optional-dependencies]
 compat = ["six>=1.17.0"]
-ai = ["httpx==0.28.1", "langchain>=1.2.16", "mcp>=1.27.0", "pydantic>=2.13.4"]
+ai = ["httpx==0.28.1", "langchain>=1.2.18", "mcp>=1.27.1", "pydantic>=2.13.4"]
 anthropic = ["splunk-sdk[ai]>=2.1.1", "langchain-anthropic>=1.4.3"]
 openai = ["splunk-sdk[ai]>=2.1.1", "langchain-openai>=1.2.1"]
 google = [
   "splunk-sdk[ai]>=2.1.1",
   "langchain-google-genai==4.2.2",
-  "google-auth>=2.51.0",
+  "google-auth>=2.52.0",
 ]
 
 # Treat the same as NPM's `devDependencies`
@@ -53,7 +53,7 @@ test = [
   "vcrpy>=8.1.1",
 ]
 release = ["build>=1.5.0", "jinja2>=3.1.6", "sphinx>=9.1.0", "twine>=6.2.0"]
-lint = ["basedpyright>=1.39.3", "ruff>=0.15.12", "mbake>=1.4.6"]
+lint = ["basedpyright>=1.39.4", "ruff>=0.15.12", "mbake>=1.4.6"]
 dev = [
   "rich>=15.0.0",
   { include-group = "test" },