Ok, this is a bit of a silly post since this series is very obviously not cyberpunk. But it has hard-boiled detectives and robots, that's all you need, right?
This is actually a series of 5 short films and you can watch the entire thing on youtube. The entire series is less than 50 minutes. I wasn't sure how Lemmy would handle a youtube playlist link so I made this post an image and you can click that youtube link to watch it. For a hard-boiled detective story set in the 1930s, it isn't bad. You just have to not question why there are robots when no other technology has surpassed the 1930s.
It actually started out as a side story from the penny-arcade guys here. And you can read all the combined comics here. Like I said, I wouldn't necessarily call it cyberpunk, but it's pretty neat.
Lots of clichés but still pretty fun. Thanks for the recommendation lol