Fix protobuf version to 3.11.4 (#8028)

* Fix protobuf version to 3.11.4

Signed-off-by: xiaolong.ran <rxl@apache.org>

* fix ci error

Signed-off-by: xiaolong.ran <rxl@apache.org>
1 file changed
tree: 40d8d78f3ac5c88a00caa87bec238763e80a0f0a
  1. pulsar-sql/