build(deps): update aws-xray-sdk requirement from ^2.13.0 to ^2.15.0 (#414)

Updates the requirements on [aws-xray-sdk](https://github.com/aws/aws-xray-sdk-python) to permit the latest version.
- [Release notes](https://github.com/aws/aws-xray-sdk-python/releases)
- [Changelog](https://github.com/aws/aws-xray-sdk-python/blob/master/CHANGELOG.rst)
- [Commits](aws/aws-xray-sdk-python@2.13.0...2.15.0)

---
updated-dependencies:
- dependency-name: aws-xray-sdk
  dependency-version: 2.15.0
  dependency-type: direct:production
...

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

Author: dependabot[bot]

pyproject.toml

@@ -11,7 +11,7 @@ python = "^3.11"
 aws-lambda-powertools = "^3.0.0"
 pydantic = "^2.7.1"
 fastjsonschema = "^2.19.1"
-aws-xray-sdk = "^2.13.0"
+aws-xray-sdk = "^2.15.0"
 
 
 [tool.poetry.group.dev.dependencies]