Update module gopkg.in/yaml.v2 to v3

go.mod

@@ -1,18 +1,23 @@
 module github.com/aktsk/atgen
 
+go 1.21.1
+
 require (
 	github.com/gorilla/mux v1.6.2
 	github.com/lkesteloot/astutil v0.0.0-20130122170032-b6715328cfa5
 	github.com/pkg/errors v0.9.1
 	github.com/spf13/afero v1.2.0
 	github.com/urfave/cli v1.20.0
 	golang.org/x/tools v0.0.0-20190117194123-b4b6fe2cb829
-	gopkg.in/yaml.v2 v2.2.8
+	gopkg.in/yaml.v2 v2.4.0
+	gopkg.in/yaml.v3 v3.0.1
 )
 
 require (
 	github.com/gorilla/context v1.1.1 // indirect
 	github.com/kr/pretty v0.1.0 // indirect
+	github.com/kr/pty v1.1.1 // indirect
+	github.com/kr/text v0.1.0 // indirect
 	golang.org/x/text v0.3.2 // indirect
 	gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 // indirect
 )

go.sum

@@ -26,3 +26,6 @@ gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10=
 gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
+gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=