4.2 Fatal Error running PHPUnit with Dataflows

[aspark21]

Moodle MOODLE_402_STABLE
Dataflows MOODLE_35_STABLE

See https://tracker.moodle.org/browse/MDL-78049 for context

Moodle 4.2.1+ (Build: 20230629), 3a64f9ceffc578a5d9f364916869ac4cf799802a
    Php: 8.0.29, mysqli: 8.0.33, OS: Linux 5.15.73-45.135.amzn2022.x86_64 x86_64
  
    Fatal error: Uncaught coding_exception: Coding error detected, it must be fixed by a programmer: When including this file for a unit test, the test must be run in an isolated process. See the PHPUnit @runInSeparateProcess and @runTestsInSeparateProcesses annotations. in /var/www/html/lib/setuplib.php:2204
    Stack trace:
    #0 /var/www/html/lib/externallib.php(35): require_phpunit_isolation()
    #1 /var/www/html/admin/tool/dataflows/tests/tool_dataflows_web_service_flow_test.php(22): require_once('/var/www/html/l...')
    #2 /var/www/html/vendor/phpunit/phpunit/src/Util/FileLoader.php(66): include_once('/var/www/html/a...')
    #3 /var/www/html/vendor/phpunit/phpunit/src/Util/FileLoader.php(49): PHPUnit\Util\FileLoader::load('/var/www/html/a...')
    #4 /var/www/html/vendor/phpunit/phpunit/src/Framework/TestSuite.php(397): PHPUnit\Util\FileLoader::checkAndLoad('/var/www/html/a...')
    #5 /var/www/html/vendor/phpunit/phpunit/src/Framework/TestSuite.php(527): PHPUnit\Framework\TestSuite->addTestFile('/var/www/html/a...')
    #6 /var/www/html/vendor/phpunit/phpunit/src/TextUI/TestSuiteMapper.php(67): PHPUnit\Framework\TestSuite->addTestFiles(Array)
    #7 /var/www/html/vendor/phpunit/phpunit/src/TextUI/Command.php(391): PHPUnit\TextUI\TestSuiteMapper->map(Object(PHPUnit\TextUI\XmlConfiguration\TestSuiteCollection), '')
    #8 /var/www/html/vendor/phpunit/phpunit/src/TextUI/Command.php(112): PHPUnit\TextUI\Command->handleArguments(Array)
    #9 /var/www/html/vendor/phpunit/phpunit/src/TextUI/Command.php(97): PHPUnit\TextUI\Command->run(Array, true)
    #10 /var/www/html/vendor/phpunit/phpunit/phpunit(98): PHPUnit\TextUI\Command::main()
    #11 /var/www/html/vendor/bin/phpunit(122): include('/var/www/html/v...')
    #12 {main}
  
    Next PHPUnit\TextUI\RuntimeException: Coding error detected, it must be fixed by a programmer: When including this file for a unit test, the test must be run in an isolated process. See the PHPUnit @runInSeparateProcess and @runTestsInSeparateProcesses annotations. in /var/www/html/vendor/phpunit/phpunit/src/TextUI/Command.php:99
    Stack trace:
    #0 /var/www/html/vendor/phpunit/phpunit/phpunit(98): PHPUnit\TextUI\Command::main()
    #1 /var/www/html/vendor/bin/phpunit(122): include('/var/www/html/v...')
    #2 {main}
      thrown in /var/www/html/vendor/phpunit/phpunit/src/TextUI/Command.php on line 99
  stdout_lines: <omitted>