require symfony/uid ^6.1

[emjay64]

Problem 1
- highsidelabs/walmart-api[dev-main, dev-php-7.4, 0.1.0, ..., 0.7.0] require symfony/uid ^6.1 -> found symfony/uid[v6.1.0-BETA1, ..., 6.4.x-dev] but these were not loaded, likely because it conflicts with another require.
- Root composer.json requires highsidelabs/walmart-api * -> satisfiable by highsidelabs/walmart-api[dev-main, dev-php-7.4, 0.1.0, ..., 0.7.0, 9999999-dev].