build(deps-dev): bump @microsoft/api-extractor from 7.11.2 to 7.15.2 (#1291)

Bumps [@microsoft/api-extractor](https://github.com/microsoft/rushstack) from 7.11.2 to 7.15.2.
- [Release notes](https://github.com/microsoft/rushstack/releases)
- [Commits](https://github.com/microsoft/rushstack/compare/@microsoft/api-extractor_v7.11.2...@microsoft/api-extractor_v7.15.2)

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

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

Author: dependabot[bot]