chore: update to go 1.21

go.mod

@@ -1,6 +1,6 @@
 module github.com/ettec/otp-common
 
-go 1.13
+go 1.21
 
 require (
 	github.com/golang/protobuf v1.4.2
@@ -14,3 +14,34 @@ require (
 	k8s.io/client-go v0.17.4
 	k8s.io/klog v1.0.0
 )
+
+require (
+	github.com/beorn7/perks v1.0.1 // indirect
+	github.com/cespare/xxhash/v2 v2.1.1 // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/gogo/protobuf v1.2.2-0.20190723190241-65acae22fc9d // indirect
+	github.com/google/gofuzz v1.0.0 // indirect
+	github.com/googleapis/gnostic v0.0.0-20170729233727-0c5108395e2d // indirect
+	github.com/imdario/mergo v0.3.5 // indirect
+	github.com/json-iterator/go v1.1.10 // indirect
+	github.com/matttproud/golang_protobuf_extensions v1.0.1 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.1 // indirect
+	github.com/prometheus/client_model v0.2.0 // indirect
+	github.com/prometheus/common v0.10.0 // indirect
+	github.com/prometheus/procfs v0.1.3 // indirect
+	github.com/spf13/pflag v1.0.5 // indirect
+	golang.org/x/crypto v0.0.0-20200220183623-bac4c82f6975 // indirect
+	golang.org/x/net v0.0.0-20191004110552-13f9640d40b9 // indirect
+	golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45 // indirect
+	golang.org/x/sys v0.0.0-20200615200032-f1bc736245b1 // indirect
+	golang.org/x/text v0.3.2 // indirect
+	golang.org/x/time v0.0.0-20190308202827-9d24e82272b4 // indirect
+	google.golang.org/appengine v1.5.0 // indirect
+	google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55 // indirect
+	google.golang.org/protobuf v1.23.0 // indirect
+	gopkg.in/inf.v0 v0.9.1 // indirect
+	gopkg.in/yaml.v2 v2.2.8 // indirect
+	k8s.io/utils v0.0.0-20191114184206-e782cd3c129f // indirect
+	sigs.k8s.io/yaml v1.1.0 // indirect
+)