refactor(provisioning_api): consolidate user-edit field logic #27422

Job	Run time
changes	8s
php8.5-s3-multibucket-minio	6m 50s
php8.5-s3-minio	6m 45s
php8.3-s3-multibucket-minio	7m 16s
php8.3-s3-minio	6m 57s
object-store-primary-summary	6s
	28m 2s

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