Fix race condition in the KinesisMDChannelAdapter

The `KinesisMessageDrivenChannelAdapter` may exit its `active` state,
but `consumerInvokers` won't be cleared in the main consumer loop

**Cherry-pick to master**

Author: artembilan

src/main/java/org/springframework/integration/aws/inbound/kinesis/KinesisMessageDrivenChannelAdapter.java

@@ -1191,6 +1191,9 @@ public void run() {
 					}
 				}
 			}
+			synchronized (KinesisMessageDrivenChannelAdapter.this.consumerInvokers) {
+				KinesisMessageDrivenChannelAdapter.this.consumerInvokers.remove(this);
+			}
 		}
 
 		@Override