chore(deps): bump datadog-lambda from 8.120.0 to 8.121.0 (#8015)

Bumps [datadog-lambda](https://github.com/DataDog/datadog-lambda-python) from 8.120.0 to 8.121.0.
- [Release notes](https://github.com/DataDog/datadog-lambda-python/releases)
- [Commits](DataDog/datadog-lambda-python@v8.120.0...v8.121.0)

---
updated-dependencies:
- dependency-name: datadog-lambda
  dependency-version: 8.121.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]