deps(deps): bump fastmcp (#1753)

Bumps the production-dependencies group with 1 update in the / directory: [fastmcp](https://github.com/PrefectHQ/fastmcp).


Updates `fastmcp` from 3.4.2 to 3.4.3
- [Release notes](https://github.com/PrefectHQ/fastmcp/releases)
- [Changelog](https://github.com/PrefectHQ/fastmcp/blob/main/docs/changelog.mdx)
- [Commits](PrefectHQ/fastmcp@v3.4.2...v3.4.3)

---
updated-dependencies:
- dependency-name: fastmcp
  dependency-version: 3.4.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: production-dependencies
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: kingpanther13 <25392815+kingpanther13@users.noreply.github.com>

Author: dependabot[bot]

pyproject.toml

@@ -28,7 +28,7 @@ classifiers = [
 ]
 
 dependencies = [
-    "fastmcp==3.4.2",
+    "fastmcp==3.4.3",
     "httpx[socks]==0.28.1",
     "pydantic==2.13.4",
     "python-dotenv==1.2.2",