build(deps): bump github.com/mitchellh/mapstructure from 1.4.1 to 1.4.2

Bumps [github.com/mitchellh/mapstructure](https://github.com/mitchellh/mapstructure) from 1.4.1 to 1.4.2.
- [Release notes](https://github.com/mitchellh/mapstructure/releases)
- [Changelog](https://github.com/mitchellh/mapstructure/blob/master/CHANGELOG.md)
- [Commits](mitchellh/mapstructure@v1.4.1...v1.4.2)

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

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

go.mod

@@ -37,7 +37,7 @@ require (
 	github.com/mattn/go-isatty v0.0.14
 	github.com/miekg/mmark v1.3.6
 	github.com/mitchellh/hashstructure v1.1.0
-	github.com/mitchellh/mapstructure v1.4.1
+	github.com/mitchellh/mapstructure v1.4.2
 	github.com/muesli/smartcrop v0.3.0
 	github.com/nfnt/resize v0.0.0-20180221191011-83c6a9932646 // indirect
 	github.com/niklasfasching/go-org v1.5.0

go.sum

@@ -417,8 +417,9 @@ github.com/mitchellh/hashstructure v1.1.0/go.mod h1:xUDAozZz0Wmdiufv0uyhnHkUTN6/
 github.com/mitchellh/iochan v1.0.0/go.mod h1:JwYml1nuB7xOzsp52dPpHFffvOCDupsG0QubkSMEySY=
 github.com/mitchellh/mapstructure v0.0.0-20160808181253-ca63d7c062ee/go.mod h1:FVVH3fgwuzCH5S8UJGiWEs2h04kUh9fWfEaFds41c1Y=
 github.com/mitchellh/mapstructure v1.1.2/go.mod h1:FVVH3fgwuzCH5S8UJGiWEs2h04kUh9fWfEaFds41c1Y=
-github.com/mitchellh/mapstructure v1.4.1 h1:CpVNEelQCZBooIPDn+AR3NpivK/TIKU8bDxdASFVQag=
 github.com/mitchellh/mapstructure v1.4.1/go.mod h1:bFUtVrKA4DC2yAKiSyO/QUcy7e+RRV2QTWOzhPopBRo=
+github.com/mitchellh/mapstructure v1.4.2 h1:6h7AQ0yhTcIsmFmnAwQls75jp2Gzs4iB8W7pjMO+rqo=
+github.com/mitchellh/mapstructure v1.4.2/go.mod h1:bFUtVrKA4DC2yAKiSyO/QUcy7e+RRV2QTWOzhPopBRo=
 github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
 github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
 github.com/modern-go/reflect2 v1.0.1/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=