build(deps): bump github.com/butuzov/ireturn from 0.2.0 to 0.2.1 (#4142)

Author: dependabot[bot]

go.mod

@@ -25,7 +25,7 @@ require (
 	github.com/bombsimon/wsl/v3 v3.4.0
 	github.com/breml/bidichk v0.2.7
 	github.com/breml/errchkjson v0.3.6
-	github.com/butuzov/ireturn v0.2.0
+	github.com/butuzov/ireturn v0.2.1
 	github.com/butuzov/mirror v1.1.0
 	github.com/charithe/durationcheck v0.0.10
 	github.com/curioswitch/go-reassign v0.2.0