fix: too new version protobuf break build

issue: #295

Signed-off-by: 刘磊 <liulei.pt@bytedance.com>

Author: zhaodiaoer

crates/shim-protos/Cargo.toml

@@ -49,7 +49,7 @@ required-features = ["async"]
 
 [dependencies]
 async-trait = { version = "0.1.48", optional = true }
-protobuf = "3.1"
+protobuf = "=3.1"
 ttrpc = "0.8"
 
 [build-dependencies]