add util function to hash a password

src/utils/passwordUtils.ts

@@ -0,0 +1,7 @@
+import bcrypt from 'bcryptjs';
+
+export const hashPassword = async (password: string) => {
+    const salt = await bcrypt.genSalt(10);
+    const hashedPassword = await bcrypt.hash(password, salt);
+    return hashedPassword;
+}