Update go version

Author: rxbn

go.mod

@@ -1,8 +1,14 @@
 module github.com/containeroo/otpgen
 
-go 1.19
+go 1.18
 
 require (
 	github.com/pquerna/otp v1.3.0
 	github.com/spf13/cobra v1.5.0
 )
+
+require (
+	github.com/boombuler/barcode v1.0.1-0.20190219062509-6c824513bacc // indirect
+	github.com/inconshreveable/mousetrap v1.0.0 // indirect
+	github.com/spf13/pflag v1.0.5 // indirect
+)