fix: update metrics proto and metric transformation. (open-telemetry#535)

Author: TommyCpp

opentelemetry-otlp/src/proto/grpcio/common.rs

@@ -1,4 +1,4 @@
-// This file is generated by rust-protobuf 2.22.1. Do not edit
+// This file is generated by rust-protobuf 2.23.0. Do not edit
 // @generated
 
 // https://github.com/rust-lang/rust-clippy/issues/702
@@ -21,7 +21,7 @@
 
 /// Generated files are compatible only with the same version
 /// of protobuf runtime.
-// const _PROTOBUF_VERSION_CHECK: () = ::protobuf::VERSION_2_22_1;
+// const _PROTOBUF_VERSION_CHECK: () = ::protobuf::VERSION_2_23_0;
 
 #[derive(PartialEq,Clone,Default)]
 #[cfg_attr(feature = "with-serde", derive(::serde::Serialize, ::serde::Deserialize))]
@@ -1488,12 +1488,12 @@ static file_descriptor_proto_data: &'static [u8] = b"\
     lues\x18\x01\x20\x03(\x0b2'.opentelemetry.proto.common.v1.KeyValueR\x06v\
     alues\"[\n\x08KeyValue\x12\x10\n\x03key\x18\x01\x20\x01(\tR\x03key\x12=\
     \n\x05value\x18\x02\x20\x01(\x0b2'.opentelemetry.proto.common.v1.AnyValu\
-    eR\x05value\"8\n\x0eStringKeyValue\x12\x10\n\x03key\x18\x01\x20\x01(\tR\
-    \x03key\x12\x14\n\x05value\x18\x02\x20\x01(\tR\x05value\"F\n\x16Instrume\
-    ntationLibrary\x12\x12\n\x04name\x18\x01\x20\x01(\tR\x04name\x12\x18\n\
-    \x07version\x18\x02\x20\x01(\tR\x07versionBq\n\x20io.opentelemetry.proto\
-    .common.v1B\x0bCommonProtoP\x01Z>github.com/open-telemetry/opentelemetry\
-    -proto/gen/go/common/v1b\x06proto3\
+    eR\x05value\"<\n\x0eStringKeyValue\x12\x10\n\x03key\x18\x01\x20\x01(\tR\
+    \x03key\x12\x14\n\x05value\x18\x02\x20\x01(\tR\x05value:\x02\x18\x01\"F\
+    \n\x16InstrumentationLibrary\x12\x12\n\x04name\x18\x01\x20\x01(\tR\x04na\
+    me\x12\x18\n\x07version\x18\x02\x20\x01(\tR\x07versionBq\n\x20io.opentel\
+    emetry.proto.common.v1B\x0bCommonProtoP\x01Z>github.com/open-telemetry/o\
+    pentelemetry-proto/gen/go/common/v1b\x06proto3\
 ";
 
 static file_descriptor_proto_lazy: ::protobuf::rt::LazyV2<::protobuf::descriptor::FileDescriptorProto> = ::protobuf::rt::LazyV2::INIT;