Bump github.com/gookit/goutil from 0.6.4 to 0.6.6

Bumps [github.com/gookit/goutil](https://github.com/gookit/goutil) from 0.6.4 to 0.6.6.
- [Release notes](https://github.com/gookit/goutil/releases)
- [Commits](gookit/goutil@v0.6.4...v0.6.6)

---
updated-dependencies:
- dependency-name: github.com/gookit/goutil
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

go.mod

@@ -3,6 +3,6 @@ module github.com/gookit/i18n
 go 1.16
 
 require (
-	github.com/gookit/goutil v0.6.4
+	github.com/gookit/goutil v0.6.6
 	github.com/gookit/ini/v2 v2.2.1
 )

go.sum

@@ -4,8 +4,9 @@ github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSs
 github.com/google/go-cmp v0.5.8/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
 github.com/gookit/color v1.5.2 h1:uLnfXcaFjlrDnQDT+NCBcfhrXqYTx/rcCa6xn01Y8yI=
 github.com/gookit/color v1.5.2/go.mod h1:w8h4bGiHeeBpvQVePTutdbERIUf3oJE5lZ8HM0UgXyg=
-github.com/gookit/goutil v0.6.4 h1:Yw99l83D26QYsIH08fLegrk1Eoq5d+gtpeK5tISpAU4=
 github.com/gookit/goutil v0.6.4/go.mod h1:90KOayLmcX12ZcbvQ6JakwJ7g4GbpzfjkOl7BHk6tAY=
+github.com/gookit/goutil v0.6.6 h1:XdvnPocHpKDXA+eykfc/F846Y1V2Vyo3+cV8rfliG90=
+github.com/gookit/goutil v0.6.6/go.mod h1:D++7kbQd/6vECyYTxB5tq6AKDIG9ZYwZNhubWJvN9dw=
 github.com/gookit/ini/v2 v2.2.1 h1:6fCrz8icnUHhYqGZwu7RtHLh+v+ErrgrAt9+aIcoJCc=
 github.com/gookit/ini/v2 v2.2.1/go.mod h1:as7p0WsJg4sufGECEqNdY/+I026qRnyzPa4UYHuuOR4=
 github.com/mitchellh/mapstructure v1.5.0 h1:jeMsZIYE/09sWLaz43PL7Gy6RuMjD2eJVyuac5Z2hdY=