Connection type should allow string

[jscheel]

https://github.com/taskforcesh/bullmq/blob/75d88780aec86465efd4ed5ad54f4c6b5afe0b49/python/bullmq/types/queue_options.py#L12

Should be dict[str, Any] | redis.Redis | str because the code currently supports all three: https://github.com/taskforcesh/bullmq/blob/75d88780aec86465efd4ed5ad54f4c6b5afe0b49/python/bullmq/redis_connection.py#L25