Bump fastapi from 0.115.2 to 0.115.3 in the dependencies group (#418)

Bumps the dependencies group with 1 update: [fastapi](https://github.com/fastapi/fastapi).


Updates `fastapi` from 0.115.2 to 0.115.3
- [Release notes](https://github.com/fastapi/fastapi/releases)
- [Commits](fastapi/fastapi@0.115.2...0.115.3)

---
updated-dependencies:
- dependency-name: fastapi
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: dependencies
...

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

pyproject.toml

@@ -46,7 +46,7 @@ dynamodb-json = "^1.4"
 optional = true
 
 [tool.poetry.group.layers-fastapi.dependencies]
-fastapi = "^0.115.2"
+fastapi = "^0.115.3"
 fastapi-utils = "^0.7.0"
 mangum = "^0.19.0"
 pydantic = "^2.9.2"