6 string references to 'system.cron' in Zircon Profile 8

ConfigInstallProfileOverrideTest::testInstallProfileConfigOverwrite in core/modules/config/src/Tests/ConfigInstallProfileOverrideTest.php

Tests install profile config changes.

ConfigStorageTestBase::testCRUD in core/modules/config/src/Tests/Storage/ConfigStorageTestBase.php

Tests storage CRUD operations.

CronForm::buildForm in core/modules/system/src/Form/CronForm.php

Form constructor.

MigrateSystemCronTest::testSystemCron in core/modules/system/src/Tests/Migrate/d6/MigrateSystemCronTest.php

Tests migration of system (cron) variables to system.cron.yml.

system_requirements in core/modules/system/system.install

Implements hook_requirements().

system_update_8013 in core/modules/system/system.install

Enable automated cron module and move the config into it.