Bump version to 0.57

Summary: Version bump to 0.57

Reviewed By: cortinico

Differential Revision: D80478993

fbshipit-source-id: d23fe2b5eafb004048ea3774eb0cc5808d168b1a

Author: Nivaldo Bondança

CHANGELOG.md

@@ -10,7 +10,7 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/).
 - All styles managing trailing commas now (https://github.com/facebook/ktfmt/issues/216, https://github.com/facebook/ktfmt/issues/442)
 
 
-## [Unreleased]
+## [0.57]
 
 ### Added
 - `TrailingCommaManagementStrategy.ONLY_ADD` strategy that does not remove existing trailing commas (https://github.com/facebook/ktfmt/issues/461, https://github.com/facebook/ktfmt/issues/512, https://github.com/facebook/ktfmt/issues/514)

gradle.properties

@@ -1,3 +1,3 @@
-ktfmt.version=0.57-SNAPSHOT
+ktfmt.version=0.57
 kotlin.code.style=official
 org.gradle.jvmargs=-Xmx2G