Update dependencies

go.mod

@@ -1,6 +1,8 @@
 module github.com/dpattmann/prometheus-timestream-adapter
 
-go 1.16
+go 1.21
+
+toolchain go1.21.6
 
 require (
 	github.com/aws/aws-sdk-go v1.52.2
@@ -9,8 +11,20 @@ require (
 	github.com/pkg/errors v0.9.1
 	github.com/prometheus/client_golang v1.19.0
 	github.com/prometheus/common v0.53.0
-	github.com/prometheus/prometheus v2.5.0+incompatible
+	github.com/prometheus/prometheus v0.52.0
 	github.com/spf13/pflag v1.0.5
 	go.uber.org/zap v1.27.0
 	golang.org/x/net v0.25.0
 )
+
+require (
+	github.com/beorn7/perks v1.0.1 // indirect
+	github.com/cespare/xxhash/v2 v2.3.0 // indirect
+	github.com/jmespath/go-jmespath v0.4.0 // indirect
+	github.com/prometheus/client_model v0.6.1 // indirect
+	github.com/prometheus/procfs v0.12.0 // indirect
+	go.uber.org/multierr v1.11.0 // indirect
+	golang.org/x/sys v0.20.0 // indirect
+	golang.org/x/text v0.15.0 // indirect
+	google.golang.org/protobuf v1.33.0 // indirect
+)