Update go.{mod,sum}

Set base version to go 1.13

and run:

$ go mod tidy -v
unused github.com/gogo/protobuf
unused github.com/golangci/gocyclo
unused github.com/golangci/golangci-lint
unused github.com/golangci/revgrep
unused github.com/gostaticanalysis/analysisutil
unused github.com/konsorten/go-windows-terminal-sequences
unused github.com/magiconair/properties
unused github.com/mattn/go-isatty
unused github.com/pelletier/go-toml
unused github.com/securego/gosec
unused github.com/spf13/afero
unused github.com/spf13/jwalterweatherman
unused github.com/uudashr/gocognit
unused golang.org/x/sys
unused golang.org/x/tools
unused mvdan.cc/unparam
unused sourcegraph.com/sqs/pbtypes

go.mod

@@ -1,28 +1,12 @@
 module github.com/BBVA/kapow
 
-go 1.12
+go 1.13
 
 require (
-	github.com/gogo/protobuf v1.3.0 // indirect
-	github.com/golangci/gocyclo v0.0.0-20180528144436-0a533e8fa43d // indirect
-	github.com/golangci/golangci-lint v1.20.0 // indirect
-	github.com/golangci/revgrep v0.0.0-20180812185044-276a5c0a1039 // indirect
 	github.com/google/shlex v0.0.0-20181106134648-c34317bd91bf
 	github.com/google/uuid v1.1.1
 	github.com/gorilla/mux v1.7.3
-	github.com/gostaticanalysis/analysisutil v0.0.3 // indirect
-	github.com/konsorten/go-windows-terminal-sequences v1.0.2 // indirect
-	github.com/magiconair/properties v1.8.1 // indirect
-	github.com/mattn/go-isatty v0.0.9 // indirect
-	github.com/pelletier/go-toml v1.5.0 // indirect
-	github.com/securego/gosec v0.0.0-20191008074434-ea9faae22d0a // indirect
-	github.com/spf13/afero v1.2.2 // indirect
 	github.com/spf13/cobra v0.0.5
-	github.com/spf13/jwalterweatherman v1.1.0 // indirect
-	github.com/uudashr/gocognit v1.0.0 // indirect
-	golang.org/x/sys v0.0.0-20191007154456-ef33b2fb2c41 // indirect
-	golang.org/x/tools v0.0.0-20191007185444-6536af71d98a // indirect
+	github.com/spf13/pflag v1.0.5 // indirect
 	gopkg.in/h2non/gock.v1 v1.0.15
-	mvdan.cc/unparam v0.0.0-20190917161559-b83a221c10a2 // indirect
-	sourcegraph.com/sqs/pbtypes v1.0.0 // indirect
 )