Bump release-drafter/release-drafter from v5.14.0 to v5.15.0

Bumps [release-drafter/release-drafter](https://github.com/release-drafter/release-drafter) from v5.14.0 to v5.15.0.
- [Release notes](https://github.com/release-drafter/release-drafter/releases)
- [Commits](https://github.com/release-drafter/release-drafter/compare/v5.14.0...fe52e97d262833ae07d05efaf1a239df3f1b5cd4

)

Signed-off-by: dependabot[bot] <support@github.com>