[buck] bump .buckversion
[buck] bump .buckversion

Reviewed By: jeremydubreil

Differential Revision: D6678605

fbshipit-source-id: 8cb6eef

jvillard/infer,facebook/infer,facebook/infer,facebook/infer,jvillard/infer,facebook/infer,jvillard/infer,jvillard/infer,jvillard/infer,jvillard/infer,facebook/infer,jvillard/infer,facebook/infer,facebook/infer