build(deps): bump sbt-scalafix from 0.14.3 to 0.14.4 (#638)

Co-authored-by: Takeru Sato <type.in.type@gmail.com>

Author: scala-steward

project/plugins.sbt

@@ -1,4 +1,4 @@
 addSbtPlugin("org.scalameta"  % "sbt-scalafmt"   % "2.5.6")
 addSbtPlugin("org.scoverage"  % "sbt-scoverage"  % "2.4.1")
-addSbtPlugin("ch.epfl.scala"  % "sbt-scalafix"   % "0.14.3")
+addSbtPlugin("ch.epfl.scala"  % "sbt-scalafix"   % "0.14.4")
 addSbtPlugin("com.github.sbt" % "sbt-ci-release" % "1.11.1")