fix:go-http plugin path encoding error

cmd/protoc-gen-go-http/http_test.go

@@ -97,4 +97,4 @@ func TestReplaceBoundary(t *testing.T) {
 	if !reflect.DeepEqual("/test/{message.namespace:.*}/name/{message.name:.*}", path) {
 		t.Fatal(`"/test/{message.namespace=*}/name/{message.name=*}" should be "/test/{message.namespace:.*}/name/{message.name:.*}"`)
 	}
-}
+}