Bump github.com/spf13/viper from 1.8.0 to 1.8.1 in /ocis

Bumps [github.com/spf13/viper](https://github.com/spf13/viper) from 1.8.0 to 1.8.1.
- [Release notes](https://github.com/spf13/viper/releases)
- [Commits](https://github.com/spf13/viper/compare/v1.8.0...v1.8.1)

---
updated-dependencies:
- dependency-name: github.com/spf13/viper
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

ocis/go.mod

@@ -8,9 +8,11 @@ require (
 	contrib.go.opencensus.io/exporter/zipkin v0.1.2
 	github.com/asim/go-micro/plugins/logger/zerolog/v3 v3.0.0-20210217182006-0f0ace1a44a9
 	github.com/asim/go-micro/v3 v3.5.1-0.20210217182006-0f0ace1a44a9
+	github.com/cznic/b v0.0.0-20181122101859-a26611c4d92d // indirect
 	github.com/gopherjs/gopherjs v0.0.0-20200217142428-fce0ec30dd00 // indirect
 	github.com/huandu/xstrings v1.3.2 // indirect
 	github.com/imdario/mergo v0.3.11 // indirect
+	github.com/jmhodges/levigo v1.0.0 // indirect
 	github.com/micro/cli/v2 v2.1.2
 	github.com/mohae/deepcopy v0.0.0-20170929034955-c48cc78d4826
 	github.com/olekukonko/tablewriter v0.0.5
@@ -32,7 +34,8 @@ require (
 	github.com/owncloud/ocis/webdav v0.0.0-20210413063522-955bd60edf33
 	github.com/rs/zerolog v1.23.0
 	github.com/spf13/cobra v1.1.3
-	github.com/spf13/viper v1.8.0
+	github.com/spf13/viper v1.8.1
+	github.com/tecbot/gorocksdb v0.0.0-20191217155057-f0fad39f321c // indirect
 	github.com/thejerf/suture/v4 v4.0.1
 	go.opencensus.io v0.23.0
 )