chore: format proto file (#254)

* chore: proto file format using buf

* generate go file

proto/greptime/v1/meta/lock.proto

@@ -16,10 +16,10 @@ syntax = "proto3";
 
 package greptime.v1.meta;
 
-option go_package = "github.com/GreptimeTeam/greptime-proto/go/greptime/v1/meta";
-
 import "greptime/v1/meta/common.proto";
 
+option go_package = "github.com/GreptimeTeam/greptime-proto/go/greptime/v1/meta";
+
 service Lock {
   // Lock acquires a distributed shared lock on a given named lock. On success,
   // it will return a unique key that exists so long as the lock is held by the
@@ -55,4 +55,6 @@ message UnlockRequest {
   bytes key = 2;
 }
 
-message UnlockResponse { ResponseHeader header = 1; }
+message UnlockResponse {
+  ResponseHeader header = 1;
+}