Initial PHPCBF fixes

...modules/project_browser_test/project_browser_test.install

.../modules/project_browser_test/project_browser_test.module

...roject_browser_test/src/Controller/TestPageController.php

tests/modules/project_browser_test/src/Datetime/TestTime.php

...es/project_browser_test/src/DrupalOrgClientMiddleware.php

...roject_browser_test/src/Extension/TestModuleInstaller.php

...rc/Plugin/ProjectBrowserSource/ProjectBrowserTestMock.php

...ct_browser_test/src/ProjectBrowserTestServiceProvider.php

...modules/project_browser_test/src/TestInstallReadiness.php

tests/src/Functional/ClearStorageTest.php

tests/src/Functional/InstallTest.php

tests/src/Functional/InstallerControllerTest.php

tests/src/Functional/ProjectBrowserMenuTabsTest.php

tests/src/Functional/RoutingTest.php

tests/src/FunctionalJavascript/ProjectBrowserUiTestTrait.php

tests/src/Kernel/CoreExperimentalLabelTest.php

tests/src/Kernel/CoreNotUpdatedValidatorTest.php

tests/src/Kernel/DatabaseTablesTest.php

tests/src/Kernel/InstallerTest.php

tests/src/Kernel/PackageNotInstalledValidatorTest.php