go.mod: bump grpc to 1.56.3

This dependency needs to be updated in order the fix the security
vulnerability GHSA-qppj-fm5r-hxr3

Signed-off-by: André Martins <andre@cilium.io>

go.mod

@@ -40,7 +40,7 @@ require (
 	github.com/go-openapi/validate v0.22.0
 	github.com/gogo/protobuf v1.3.2
 	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da
-	github.com/golang/protobuf v1.5.2
+	github.com/golang/protobuf v1.5.3
 	github.com/google/go-cmp v0.5.9
 	github.com/google/gopacket v1.1.19
 	github.com/google/gops v0.3.25
@@ -84,16 +84,16 @@ require (
 	go.universe.tf/metallb v0.11.0
 	golang.org/x/crypto v0.1.0
 	golang.org/x/exp v0.0.0-20230425010034-47ecfdc1ba53
-	golang.org/x/net v0.7.0
-	golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4
-	golang.org/x/sys v0.5.0
+	golang.org/x/net v0.9.0
+	golang.org/x/sync v0.1.0
+	golang.org/x/sys v0.7.0
 	golang.org/x/time v0.0.0-20220210224613-90d013bbcef8
-	golang.org/x/tools v0.2.0
+	golang.org/x/tools v0.7.0
 	golang.zx2c4.com/wireguard v0.0.0-20211017052713-f87e87af0d9a
 	golang.zx2c4.com/wireguard/wgctrl v0.0.0-20211027115401-c9b1ec1aa6d8
-	google.golang.org/genproto v0.0.0-20220519153652-3a47de7e79bd
-	google.golang.org/grpc v1.47.0
-	google.golang.org/protobuf v1.28.0
+	google.golang.org/genproto v0.0.0-20230410155749-daa745c078e1
+	google.golang.org/grpc v1.56.3
+	google.golang.org/protobuf v1.30.0
 	gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c
 	gopkg.in/ini.v1 v1.66.6
 	gopkg.in/yaml.v2 v2.4.0
@@ -126,9 +126,9 @@ require (
 	github.com/aws/aws-sdk-go-v2/service/sso v1.11.10 // indirect
 	github.com/aws/aws-sdk-go-v2/service/sts v1.16.8 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
-	github.com/census-instrumentation/opencensus-proto v0.3.0 // indirect
-	github.com/cespare/xxhash/v2 v2.1.2 // indirect
-	github.com/cncf/xds/go v0.0.0-20211130200136-a8f946100490 // indirect
+	github.com/census-instrumentation/opencensus-proto v0.4.1 // indirect
+	github.com/cespare/xxhash/v2 v2.2.0 // indirect
+	github.com/cncf/xds/go v0.0.0-20230607035331-e9ce68804cb4 // indirect
 	github.com/coreos/go-semver v0.3.0 // indirect
 	github.com/cpuguy83/go-md2man/v2 v2.0.1 // indirect
 	github.com/cyphar/filepath-securejoin v0.2.3 // indirect
@@ -140,7 +140,7 @@ require (
 	github.com/eapache/channels v1.1.0 // indirect
 	github.com/eapache/queue v1.1.0 // indirect
 	github.com/emicklei/go-restful v2.16.0+incompatible // indirect
-	github.com/envoyproxy/protoc-gen-validate v0.6.2 // indirect
+	github.com/envoyproxy/protoc-gen-validate v0.10.1 // indirect
 	github.com/evanphx/json-patch v5.6.0+incompatible // indirect
 	github.com/fatih/color v1.13.0 // indirect
 	github.com/go-kit/kit v0.12.0 // indirect
@@ -215,10 +215,10 @@ require (
 	go.mongodb.org/mongo-driver v1.8.3 // indirect
 	go.uber.org/atomic v1.9.0 // indirect
 	go.uber.org/zap v1.19.1 // indirect
-	golang.org/x/mod v0.6.0 // indirect
-	golang.org/x/oauth2 v0.0.0-20220411215720-9780585627b5 // indirect
-	golang.org/x/term v0.5.0 // indirect
-	golang.org/x/text v0.7.0 // indirect
+	golang.org/x/mod v0.9.0 // indirect
+	golang.org/x/oauth2 v0.7.0 // indirect
+	golang.org/x/term v0.7.0 // indirect
+	golang.org/x/text v0.9.0 // indirect
 	google.golang.org/appengine v1.6.7 // indirect
 	gopkg.in/inf.v0 v0.9.1 // indirect
 	gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 // indirect