all: fix typos in comments (#21118)

les/peer.go

@@ -150,7 +150,7 @@ func (p *peerCommons) isFrozen() bool {
 	return atomic.LoadUint32(&p.frozen) != 0
 }
 
-// canQueue returns an indicator whether the peer can queue a operation.
+// canQueue returns an indicator whether the peer can queue an operation.
 func (p *peerCommons) canQueue() bool {
 	return p.sendQueue.CanQueue() && !p.isFrozen()
 }