Bump fastapi from 0.114.2 to 0.115.2

Bumps [fastapi](https://github.com/fastapi/fastapi) from 0.114.2 to 0.115.2.
- [Release notes](https://github.com/fastapi/fastapi/releases)
- [Commits](fastapi/fastapi@0.114.2...0.115.2)

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

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

pyproject.toml

@@ -47,7 +47,7 @@ dependencies = [
     "fastagency @ git+https://github.com/airtai/fastagency.git@main",
     "faststream[nats]>=0.5.10,<0.6",
     "pydantic>=2.3,<3",
-    "fastapi==0.114.2",
+    "fastapi==0.115.2",
     "prisma>=0.13.1,<0.15",
     "asyncer==0.0.8",
     "markdownify==0.13.1", # Needed by autogen.WebSurferAgent but not included