Bump fastmcp from 3.2.0 to 3.4.7

Bumps [fastmcp](https://github.com/PrefectHQ/fastmcp) from 3.2.0 to 3.4.7.
- [Release notes](https://github.com/PrefectHQ/fastmcp/releases)
- [Changelog](https://github.com/PrefectHQ/fastmcp/blob/main/docs/changelog.mdx)
- [Commits](PrefectHQ/fastmcp@v3.2.0...v3.4.7)

---
updated-dependencies:
- dependency-name: fastmcp
  dependency-version: 3.4.7
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Author: dependabot[bot]