[GitHubEnterprise-3.6] Update dependency wyrihaximus/async-test-utilities to v8 #400

Job	Run time
Continuous Integration / Check Markdown links	0s
Continuous Integration / Set Milestone	0s
Continuous Integration / Continuous Integration / Package Name	5s
Continuous Integration / Continuous Integration / Supported Versions Matrix	4s
Continuous Integration / Continuous Integration / Supported Threading Matrix	0s
Continuous Integration / Continuous Integration / Supported Checks Matrix	0s
Continuous Integration / Continuous Integration / Run ${{ matrix.check }} on PHP ${{ matrix.php }} (${{ matrix.php-to-thread-or-not-to-thread }}) with ${{ matrix.composer }} dependency preference	0s
Continuous Integration / Continuous Integration / Run tests on PHP ${{ matrix.php }} (${{ matrix.php-to-thread-or-not-to-thread }}) with ${{ matrix.composer }} dependency preference (${{ matrix.os }})	0s
Continuous Integration / Continuous Integration / Test we can require "${{ matrix.package-name }}" on PHP ${{ matrix.php }} (${{ matrix.php-to-thread-or-not-to-thread }})	0s
Continuous Integration / Continuous Integration / ✔️	0s
	9s

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