chore: bump golangci-lint to v2.11.4 (#7983)

plugin/erratic/erratic.go

@@ -13,7 +13,7 @@ import (
 
 // Erratic is a plugin that returns erratic responses to each client.
 type Erratic struct {
-	q        uint64 // counter of queries
+	q        atomic.Uint64 // counter of queries
 	drop     uint64
 	delay    uint64
 	truncate uint64
@@ -29,8 +29,8 @@ func (e *Erratic) ServeDNS(_ctx context.Context, w dns.ResponseWriter, r *dns.Ms
 	delay := false
 	trunc := false
 
-	queryNr := atomic.LoadUint64(&e.q)
-	atomic.AddUint64(&e.q, 1)
+	queryNr := e.q.Load()
+	e.q.Add(1)
 
 	if e.drop > 0 && queryNr%e.drop == 0 {
 		drop = true

plugin/erratic/ready.go

@@ -1,11 +1,9 @@
 package erratic
 
-import "sync/atomic"
-
 // Ready returns true if the number of received queries is in the range [3, 5). All other values return false.
 // To aid in testing we want to this flip between ready and not ready.
 func (e *Erratic) Ready() bool {
-	q := atomic.LoadUint64(&e.q)
+	q := e.q.Load()
 	if q >= 3 && q < 5 {
 		return true
 	}