Bump wyrihaximus/async-test-utilities from 3.4.13 to 3.4.15#26

dependabot[bot] wants to merge 1 commit intomasterreactphp-parallel/event-loop:masterfrom

dependabot/composer/wyrihaximus/async-test-utilities-3.4.15reactphp-parallel/event-loop:dependabot/composer/wyrihaximus/async-test-utilities-3.4.15Copy head branch name to clipboard