Bump @sap-cloud-sdk/http-client from 2.15.0 to 3.12.0

Bumps [@sap-cloud-sdk/http-client](https://github.com/SAP/cloud-sdk-js) from 2.15.0 to 3.12.0.
- [Release notes](https://github.com/SAP/cloud-sdk-js/releases)
- [Changelog](https://github.com/SAP/cloud-sdk-js/blob/main/CHANGELOG.md)
- [Commits](SAP/cloud-sdk-js@v2.15.0...v3.12.0)

---
updated-dependencies:
- dependency-name: "@sap-cloud-sdk/http-client"
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]