Convert data from JSONB type to Array type in PostgreSQL

I have a table with columns in jsonb format which contains data like this:

['A', 'B', 'C']

I want to convert column to array column type but I don’t know how to do it properly.
Example of my script structure:

ALTER TABLE "products" ADD COLUMN "test_array" VARCHAR(2)[];

UPDATE "products" SET test_array = do converting here;

ALTER TABLE "products" DROP COLUMN "test";
ALTER TABLE "products" RENAME COLUMN "test_array" TO "test";

>Solution :

The syntax looks odd, but this works:

update products 
   set test_array = array(select jsonb_array_elements_text(test));

Working fiddle