Bump fastmcp from 2.10.5 to 2.13.0 in /server/web-risk

Bumps [fastmcp](https://github.com/jlowin/fastmcp) from 2.10.5 to 2.13.0.
- [Release notes](https://github.com/jlowin/fastmcp/releases)
- [Changelog](https://github.com/jlowin/fastmcp/blob/main/docs/changelog.mdx)
- [Commits](jlowin/fastmcp@v2.10.5...v2.13.0)

---
updated-dependencies:
- dependency-name: fastmcp
  dependency-version: 2.13.0
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

server/web-risk/requirements.txt

@@ -1,2 +1,2 @@
-fastmcp==2.10.5
+fastmcp==2.13.0
 google-cloud-webrisk==1.18.1