Run scalafix before scalafmt (#6011)
Run scalafix before scalafmt (#6011)

Fixes #6009
pantsbuild/pants,twitter/pants,pantsbuild/pants,wisechengyi/pants,twitter/pants,tdyas/pants,twitter/pants,pantsbuild/pants,twitter/pants,pantsbuild/pants,pantsbuild/pants,benjyw/pants,tdyas/pants,jsirois/pants,wisechengyi/pants,pantsbuild/pants,tdyas/pants,tdyas/pants,tdyas/pants,pantsbuild/pants,twitter/pants,wisechengyi/pants,wisechengyi/pants,benjyw/pants,tdyas/pants,jsirois/pants,jsirois/pants,twitter/pants,benjyw/pants,wisechengyi/pants,tdyas/pants,benjyw/pants,wisechengyi/pants,twitter/pants,benjyw/pants,benjyw/pants,twitter/pants,wisechengyi/pants,twitter/pants,wisechengyi/pants,tdyas/pants,tdyas/pants,benjyw/pants,wisechengyi/pants