Set minimum Go version to 1.19 in go.mod

go.mod

 module git.autistici.org/ai3/tools/replds2
 
-go 1.15
+go 1.19
 
 require (
 	github.com/DataDog/zstd v1.5.3-0.20220606203749-fd035e54e312
@@ -11,9 +11,20 @@ require (
 	github.com/grpc-ecosystem/go-grpc-middleware v1.4.0
 	github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0
 	github.com/prometheus/client_golang v1.11.0
-	github.com/prometheus/common v0.31.1 // indirect
-	github.com/prometheus/procfs v0.7.3 // indirect
 	golang.org/x/sync v0.1.0
 	google.golang.org/grpc v1.53.0
 	google.golang.org/protobuf v1.29.1
 )
+
+require (
+	github.com/beorn7/perks v1.0.1 // indirect
+	github.com/cespare/xxhash/v2 v2.2.0 // indirect
+	github.com/matttproud/golang_protobuf_extensions v1.0.1 // indirect
+	github.com/prometheus/client_model v0.2.0 // indirect
+	github.com/prometheus/common v0.31.1 // indirect
+	github.com/prometheus/procfs v0.7.3 // indirect
+	golang.org/x/net v0.5.0 // indirect
+	golang.org/x/sys v0.4.0 // indirect
+	golang.org/x/text v0.6.0 // indirect
+	google.golang.org/genproto v0.0.0-20230110181048-76db0878b65f // indirect
+)