Issue #2846013 by Sam152: Use consistent case for the word "workflow" in content_moderation

...t_moderation/src/Entity/Handler/NodeModerationHandler.php

core/modules/content_moderation/src/EntityOperations.php

...ules/content_moderation/src/Form/EntityModerationForm.php

.../modules/content_moderation/src/ModerationInformation.php

...content_moderation/src/ModerationInformationInterface.php

...on/src/Plugin/Field/FieldWidget/ModerationStateWidget.php

...eration/src/Plugin/Field/ModerationStateFieldItemList.php

...idation/Constraint/ModerationStateConstraintValidator.php

...ules/content_moderation/src/StateTransitionValidation.php

...t_moderation/tests/src/Unit/ModerationInformationTest.php

...deration/tests/src/Unit/StateTransitionValidationTest.php