I would leave it. I wouldn't do anything besides maybe hammering on it in your garage. I had much larger ones on both of my DL's wheels. Rode it for many 10,000's of miles like that. Once a new rear wouldn't seat so then I hammered it out.
I would only have a professional take a look at it for aesthetic reasons. That is the smallest wheel dent I've seen.
"the journey is the goal"