Update sbt-scalafix to 0.9.5

[fthomas]

This updates Scalafix to 0.6.0-M9 by applying this diff. I've checked locally that the Scalafix tests still pass.

My ultimate goal is to update Scalafix to 0.9.x so that this rule (and potential future rules) can be used by Scala Steward (scala-steward-org/scala-steward#611) but it is currently unclear to me if updating to 0.9.x means that this rule needs to rewritten with Scalafix' v1 API. @olafurpg do v0 rules also work with 0.9.x?

[olafurpg]

In Scalafix v0.9 there is a import scalafix.v0._ that keeps the old API and should at least make old rules compile with the latest Scalafix. However, all symbol matchers like

_root_.cats.syntax.CartesianOps.`*>`.

will need to be written against the new symbol format

cats/syntax/CartesianOps#`*>`(). (assuming *> is a method and CartesianOps is a class)

[olafurpg]

Scalafix 0.6.x only supports outdated Scala versions so it's not much value today. The 0.9.x API will probably stay stable for a long time, it should probably be released as v1.0.

[codecov-io]

Codecov Report

Merging #2907 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #2907   +/-   ##
=======================================
  Coverage   94.26%   94.26%           
=======================================
  Files         363      363           
  Lines        6945     6945           
  Branches      181      181           
=======================================
  Hits         6547     6547           
  Misses        398      398

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[fthomas]

Rewriting the symbol matchers did the trick. Thanks, @olafurpg!

sbt-scalafix is now on 0.9.5.

[fthomas]

And it works for Scala Steward: https://github.com/fthomas/scalafix-test/pull/9/files :-)

[kailuowang]

Thanks very much!