Bump github.com/golangci/golangci-lint from 1.27.0 to 1.29.0

Bumps [github.com/golangci/golangci-lint](https://github.com/golangci/golangci-lint) from 1.27.0 to 1.29.0.
- [Release notes](https://github.com/golangci/golangci-lint/releases)
- [Changelog](https://github.com/golangci/golangci-lint/blob/master/CHANGELOG.md)
- [Commits](golangci/golangci-lint@v1.27.0...v1.29.0)

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

go.mod

@@ -4,10 +4,9 @@ go 1.13
 
 require (
 	github.com/fsnotify/fsnotify v1.4.9
-	github.com/golangci/golangci-lint v1.27.0
+	github.com/golangci/golangci-lint v1.29.0
 	github.com/google/go-cmp v0.5.1
 	github.com/spf13/cobra v1.0.0
-	github.com/spf13/viper v1.7.0 // indirect
 	go.uber.org/zap v1.15.0
-	golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e
+	golang.org/x/sync v0.0.0-20200625203802-6e8e738ad208
 )