build(deps): bump github.com/muesli/mango from 0.1.0 to 0.2.0

Bumps [github.com/muesli/mango](https://github.com/muesli/mango) from 0.1.0 to 0.2.0.
- [Release notes](https://github.com/muesli/mango/releases)
- [Commits](muesli/mango@v0.1.0...v0.2.0)

---
updated-dependencies:
- dependency-name: github.com/muesli/mango
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

go.mod

@@ -4,7 +4,7 @@ go 1.17
 
 require (
 	github.com/muesli/coral v1.0.0
-	github.com/muesli/mango v0.1.0
+	github.com/muesli/mango v0.2.0
 	github.com/muesli/mango-pflag v0.1.0
 	github.com/muesli/roff v0.1.0
 )

go.sum

@@ -3,8 +3,9 @@ github.com/inconshreveable/mousetrap v1.0.0 h1:Z8tu5sraLXCXIcARxBp/8cbvlwVa7Z1NH
 github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANytuPF1OarO4DADm73n8=
 github.com/muesli/coral v1.0.0 h1:odyqkoEg4aJAINOzvnjN4tUsdp+Zleccs7tRIAkkYzU=
 github.com/muesli/coral v1.0.0/go.mod h1:bf91M/dkp7iHQw73HOoR9PekdTJMTD6ihJgWoDitde8=
-github.com/muesli/mango v0.1.0 h1:DZQK45d2gGbql1arsYA4vfg4d7I9Hfx5rX/GCmzsAvI=
 github.com/muesli/mango v0.1.0/go.mod h1:5XFpbC8jY5UUv89YQciiXNlbi+iJgt29VDC5xbzrLL4=
+github.com/muesli/mango v0.2.0 h1:iNNc0c5VLQ6fsMgAqGQofByNUBH2Q2nEbD6TaI+5yyQ=
+github.com/muesli/mango v0.2.0/go.mod h1:5XFpbC8jY5UUv89YQciiXNlbi+iJgt29VDC5xbzrLL4=
 github.com/muesli/mango-pflag v0.1.0 h1:UADqbYgpUyRoBja3g6LUL+3LErjpsOwaC9ywvBWe7Sg=
 github.com/muesli/mango-pflag v0.1.0/go.mod h1:YEQomTxaCUp8PrbhFh10UfbhbQrM/xJ4i2PB8VTLLW0=
 github.com/muesli/roff v0.1.0 h1:YD0lalCotmYuF5HhZliKWlIx7IEhiXeSfq7hNjFqGF8=