fix: update to GO 1.20

modules/key-distributor/files/function/go.mod

@@ -1,27 +1,37 @@
 module github.com/terraform-google-modules/terraform-google-service-accounts/modules/key-distributor/files/function
 
-go 1.18
+go 1.20
 
 require (
 	golang.org/x/crypto v0.25.0
 	google.golang.org/api v0.189.0
 )
 
 require (
-	cloud.google.com/go/compute v1.19.1 // indirect
-	cloud.google.com/go/compute/metadata v0.2.3 // indirect
+	cloud.google.com/go/auth v0.7.2 // indirect
+	cloud.google.com/go/auth/oauth2adapt v0.2.3 // indirect
+	cloud.google.com/go/compute/metadata v0.5.0 // indirect
+	github.com/felixge/httpsnoop v1.0.4 // indirect
+	github.com/go-logr/logr v1.4.2 // indirect
+	github.com/go-logr/stdr v1.2.2 // indirect
 	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
-	github.com/golang/protobuf v1.5.3 // indirect
-	github.com/google/uuid v1.3.0 // indirect
-	github.com/googleapis/enterprise-certificate-proxy v0.2.3 // indirect
-	github.com/googleapis/gax-go/v2 v2.7.1 // indirect
+	github.com/golang/protobuf v1.5.4 // indirect
+	github.com/google/s2a-go v0.1.7 // indirect
+	github.com/google/uuid v1.6.0 // indirect
+	github.com/googleapis/enterprise-certificate-proxy v0.3.2 // indirect
+	github.com/googleapis/gax-go/v2 v2.12.5 // indirect
+	github.com/stretchr/testify v1.9.0 // indirect
 	go.opencensus.io v0.24.0 // indirect
-	golang.org/x/net v0.23.0 // indirect
-	golang.org/x/oauth2 v0.7.0 // indirect
-	golang.org/x/sys v0.18.0 // indirect
-	golang.org/x/text v0.14.0 // indirect
-	google.golang.org/appengine v1.6.7 // indirect
-	google.golang.org/genproto v0.0.0-20230410155749-daa745c078e1 // indirect
-	google.golang.org/grpc v1.56.3 // indirect
-	google.golang.org/protobuf v1.33.0 // indirect
+	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.49.0 // indirect
+	go.opentelemetry.io/otel v1.24.0 // indirect
+	go.opentelemetry.io/otel/metric v1.24.0 // indirect
+	go.opentelemetry.io/otel/trace v1.24.0 // indirect
+	golang.org/x/net v0.27.0 // indirect
+	golang.org/x/oauth2 v0.21.0 // indirect
+	golang.org/x/sys v0.22.0 // indirect
+	golang.org/x/text v0.16.0 // indirect
+	google.golang.org/genproto/googleapis/api v0.0.0-20240701130421-f6361c86f094 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20240722135656-d784300faade // indirect
+	google.golang.org/grpc v1.64.1 // indirect
+	google.golang.org/protobuf v1.34.2 // indirect
 )

modules/key-distributor/main.tf

@@ -77,7 +77,7 @@ resource "google_cloudfunctions_function" "function" {
   region       = var.region
   name         = var.function_name
   description  = "Generates and encrypts a new Service Account key given a GPG public key"
-  runtime      = "go118"
+  runtime      = "go120"
   trigger_http = true
 
   service_account_email = google_service_account.distributor.email