fix(deps): update module github.com/spf13/cobra to v1.2.1

Author: renovate-bot

go.mod

@@ -16,8 +16,8 @@ require (
 	github.com/prometheus/client_golang v1.9.0
 	github.com/rs/zerolog v1.23.0
 	github.com/slok/kubewebhook v0.11.0
-	github.com/spf13/cobra v1.1.1
-	github.com/spf13/viper v1.7.1
+	github.com/spf13/cobra v1.2.1
+	github.com/spf13/viper v1.8.1
 	github.com/stretchr/testify v1.7.0
 	gopkg.in/yaml.v2 v2.4.0
 	k8s.io/api v0.20.1