bump up go version to 1.8

go.mod

@@ -1,14 +1,23 @@
 module github.com/ynqa/wego
 
-go 1.15
+go 1.18
 
 require (
-	github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e // indirect
 	github.com/olekukonko/tablewriter v0.0.4
 	github.com/peterh/liner v1.2.0
 	github.com/pkg/errors v0.9.1
 	github.com/spf13/cobra v1.1.1
 	github.com/stretchr/testify v1.6.1
 	golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9
+)
+
+require (
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/inconshreveable/mousetrap v1.0.0 // indirect
+	github.com/mattn/go-runewidth v0.0.7 // indirect
+	github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/spf13/pflag v1.0.5 // indirect
 	gopkg.in/check.v1 v1.0.0-20200902074654-038fdea0a05b // indirect
+	gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c // indirect
 )