Migrate from github.com/golang/protobuf to google.golang.org/protobuf (#7593)

Signed-off-by: Matthieu MOREL <matthieu.morel35@gmail.com>

pkg/plugin/generated/Shared.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.23.0
-// 	protoc        v3.14.0
+// 	protoc-gen-go v1.33.0
+// 	protoc        v4.25.2
 // source: Shared.proto
 
 package generated
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	timestamppb "google.golang.org/protobuf/types/known/timestamppb"
@@ -22,10 +21,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type Empty struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache