Bump wyrihaximus/async-test-utilities from 3.4.18 to 3.4.19
Bump wyrihaximus/async-test-utilities from 3.4.18 to 3.4.19

Bumps [wyrihaximus/async-test-utilities](https://github.com/WyriHaximus/php-async-test-utilities) from 3.4.18 to 3.4.19.
- [Release notes](https://github.com/WyriHaximus/php-async-test-utilities/releases)
- [Commits](https://github.com/WyriHaximus/php-async-test-utilities/compare/3.4.18...3.4.19)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
WyriHaximus/reactphp-child-process-messenger,WyriHaximus/reactphp-child-process-messenger