I don't to reach out to a hiring manager for my friend.
That doesn't sound nice. Why wouldn't you reach out for your friend?
Because I don't like the hiring manager.
Even if you have personal problems with the hiring manager, you should help your friend. It is petty and unkind to put your personal grievances above helping your friend get a job.
Maybe I do not want to help them because I feel they don't deserve a job.
Then why be friends with them if you don't want to be there for them when they need help. Friendship is all about being there for each other.