Bump api-clients/test-utilities from 5.3.0 to 5.4.0#7

dependabot-preview[bot] merged 1 commit intomasterphp-api-clients/middleware-timer-response:masterfrom

dependabot/composer/api-clients/test-utilities-5.4.0php-api-clients/middleware-timer-response:dependabot/composer/api-clients/test-utilities-5.4.0Copy head branch name to clipboard