Bump guzzlehttp/promises from 2.2.0 to 2.3.0

Bumps [guzzlehttp/promises](https://github.com/guzzle/promises) from 2.2.0 to 2.3.0.
- [Release notes](https://github.com/guzzle/promises/releases)
- [Changelog](https://github.com/guzzle/promises/blob/2.3/CHANGELOG.md)
- [Commits](guzzle/promises@2.2.0...2.3.0)

---
updated-dependencies:
- dependency-name: guzzlehttp/promises
  dependency-version: 2.3.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]