refactor: ♻️ new limits for database varchars

migrations/20241204225135_create_user_table.up.sql

@@ -1,8 +1,8 @@
 -- Add up migration script here
 CREATE TABLE IF NOT EXISTS "user"(
     id BIGSERIAL PRIMARY KEY NOT NULL UNIQUE,
-    name VARCHAR(255) NOT NULL,
-    surname VARCHAR(255) NOT NULL,
+    name VARCHAR(256) NOT NULL,
+    surname VARCHAR(256) NOT NULL,
     gender boolean NOT NULL,
     birth_date DATE NOT NULL,
     role_id BIGSERIAL NOT NULL REFERENCES "role"(id),