Bump react/promise from 2.7.0 to 2.7.1

Bumps [react/promise](https://github.com/reactphp/promise) from 2.7.0 to 2.7.1.
- [Release notes](https://github.com/reactphp/promise/releases)
- [Changelog](https://github.com/reactphp/promise/blob/v2.7.1/CHANGELOG.md)
- [Commits](reactphp/promise@v2.7.0...v2.7.1)

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Author: dependabot-support