build(deps): bump ruff from 0.16.4 to 0.16.5

Bumps [ruff](https://github.com/astral-sh/ruff) from 0.16.4 to 0.16.5.
- [Release notes](https://github.com/astral-sh/ruff/releases)
- [Changelog](https://github.com/astral-sh/ruff/blob/main/CHANGELOG.md)
- [Commits](astral-sh/ruff@0.16.4...0.16.5)

---
updated-dependencies:
- dependency-name: ruff
  dependency-version: 0.16.5
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

openai-agents-sdk/requirements.txt

@@ -5,4 +5,4 @@ openai-agents==0.22.0
 python-dotenv==1.2.3
 
 pytest==9.1.1
-ruff==0.16.4
+ruff==0.16.5

pydantic-ai/requirements.txt

@@ -5,4 +5,4 @@ pydantic-ai[openai,anthropic]==2.34.0
 python-dotenv==1.2.3
 
 pytest==9.1.1
-ruff==0.16.4
+ruff==0.16.5