Update module github.com/spf13/viper to v1.17.0

go.mod

@@ -3,19 +3,17 @@ module github.com/mpppk/iroha
 go 1.12
 
 require (
-	cloud.google.com/go v0.86.0
-	cloud.google.com/go/firestore v1.1.0
-	cloud.google.com/go/storage v1.10.0
+	cloud.google.com/go v0.110.7
+	cloud.google.com/go/firestore v1.13.0
+	cloud.google.com/go/storage v1.30.1
 	firebase.google.com/go v3.13.0+incompatible
 	github.com/blang/semver v3.8.0+incompatible
-	github.com/hashicorp/golang-lru v0.5.1 // indirect
 	github.com/mitchellh/go-homedir v1.1.0
 	github.com/mpppk/bbolt v1.3.3
 	github.com/pkg/errors v0.9.1
 	github.com/rhysd/go-github-selfupdate v1.2.3
 	github.com/spf13/cobra v0.0.7
-	github.com/spf13/viper v1.8.1
-	golang.org/x/exp v0.0.0-20200224162631-6cc2880d07d6 // indirect
-	golang.org/x/sync v0.0.0-20210220032951-036812b2e83c
-	google.golang.org/api v0.50.0
+	github.com/spf13/viper v1.17.0
+	golang.org/x/sync v0.3.0
+	google.golang.org/api v0.143.0
 )