Rolling Rock unaffected by Wind/Current effects

[RoyKirbs]

The Rolling Rock thing doesn't get affected by wind whenever the player is currently standing on the rock, they do however get pushed by wind the moment the player leaves the rock.

 

[Lach]

Thanks! Should be fixed and already merged for 2.2.1 here: https://git.magicalgirl.moe/STJr/SRB2/merge_requests/655