feat: find users related to specific admin repo

queries/users.sql

@@ -1,6 +1,9 @@
 -- name: FindAllUsers :many
 SELECT * FROM users;
 
+-- name: FindAdminUsers :many
+SELECT * FROM users WHERE created_by = $1;
+
 -- name: InsertUser :one
 INSERT INTO users (
     email, full_name, password_hash, is_admin, created_by