build(deps): bump google.golang.org/protobuf from 1.36.2 to 1.36.4 in /contrib/golang/router/cluster_specifier/test/test_data/simple in the contrib-golang group across 1 directory

build(deps): bump google.golang.org/protobuf from 1.36.2 to 1.36.4 in /contrib/golang/router/cluster_specifier/test/test_data/simple in the contrib-golang group across 1 directory #20762