deps(runner): bump anthropic 0.105.2 (#1617)

## SDK Version Bump

- `anthropic`: 0.104.1 -> 0.105.2

### TL;DR

- 2 new feature(s), 0 bug fix(es)

<details><summary><strong>New Features</strong> (2)</summary>

| Feature | Package | Version | Claude | Gemini | Default | Action |
|---------|---------|---------|--------|--------|---------|--------|
| **Add support for claude-opus-4-8, mid-conversation system blocks, and
usage.ou...** | `anthropic` | 0.105.0 | Yes | - | Available | Review |
| **support custom file size caps** | `anthropic` | 0.105.0 | Yes | - |
Available | Review |

</details>

<details><summary>Internal changes: <code>anthropic</code> (1)</summary>

- use Trusted Publishing for PyPI releases (0.105.1)

</details>

---
_Automated by `.github/workflows/sdk-version-bump.yml`_

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

Author: github-actions[bot]

components/runners/ambient-runner/pyproject.toml

@@ -23,7 +23,7 @@ dependencies = [
 
 [project.optional-dependencies]
 claude = [
-  "anthropic[vertex]>=0.104.1",
+  "anthropic[vertex]>=0.105.2",
   "claude-agent-sdk>=0.2.87",
 ]
 observability = [