Upgrade: [dependabot] - bump @nhs/fhir-middy-error-handler

Bumps [@nhs/fhir-middy-error-handler](https://github.com/NHSDigital/nhs-fhir-middy-error-handler) from 2.1.66 to 2.1.69.
- [Release notes](https://github.com/NHSDigital/nhs-fhir-middy-error-handler/releases)
- [Changelog](https://github.com/NHSDigital/nhs-fhir-middy-error-handler/blob/main/RELEASE.md)
- [Commits](NHSDigital/nhs-fhir-middy-error-handler@v2.1.66...v2.1.69)

---
updated-dependencies:
- dependency-name: "@nhs/fhir-middy-error-handler"
  dependency-version: 2.1.69
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Author: dependabot[bot]