Extend linter rules (#1300)

- dupword checks for duplicate words in the source code
- durationcheck checks for two durations multiplied together
- forbidigo forbids identifiers
- mirror reports wrong mirror patterns of bytes/strings usage
- misspell finds commonly misspelled English words in comments
- predeclared finds code that shadows one of Go's predeclared identifiers
- thelper detects Go test helpers without t.Helper() call and checks the consistency of test helpers

management/server/telemetry/grpc_metrics.go

@@ -116,6 +116,6 @@ func (grpcMetrics *GRPCMetrics) RegisterConnectedStreams(producer func() int64)
 }
 
 // UpdateChannelQueueLength update the histogram that keep distribution of the update messages channel queue
-func (metrics *GRPCMetrics) UpdateChannelQueueLength(len int) {
-	metrics.channelQueueLength.Record(metrics.ctx, int64(len))
+func (metrics *GRPCMetrics) UpdateChannelQueueLength(length int) {
+	metrics.channelQueueLength.Record(metrics.ctx, int64(length))
 }