avoid too much auditing during decom/rebalance make it more robust (#19174)

there can be a sudden spike in tiny allocations,
due to too much auditing being done, also don't hang
on the

```
h.logCh <- entry
```

after initializing workers if you do not have a way to
dequeue for some reason.

internal/logger/target/http/http.go

@@ -416,7 +416,14 @@ func (h *Target) Send(ctx context.Context, entry interface{}) error {
 					go h.startHTTPLogger(ctx)
 				}
 			}
-			h.logCh <- entry
+			select {
+			case h.logCh <- entry:
+			case <-ctx.Done():
+				// return error only for context timedout.
+				if errors.Is(ctx.Err(), context.DeadlineExceeded) {
+					return ctx.Err()
+				}
+			}
 			return nil
 		}
 		atomic.AddInt64(&h.totalMessages, 1)