feat: implemented handling webhooks

sql/queries/users.sql

@@ -19,9 +19,17 @@ RETURNING *;
 DELETE FROM users;
 
 -- name: GetUserById :one
-SELECT id, created_at, updated_at, email, hashed_password FROM users
+SELECT id, created_at, updated_at, email, hashed_password, is_chirpy_red FROM users
 WHERE id = $1;
 
 -- name: GetUserByEmail :one
-SELECT id, created_at, updated_at, email, hashed_password FROM users
+SELECT id, created_at, updated_at, email, hashed_password, is_chirpy_red FROM users
 WHERE email = $1;
+
+-- name: UpgradeUser :one
+UPDATE users
+SET is_chirpy_red = TRUE
+WHERE id = $1
+RETURNING *;
+
+