chore: upgrade libs to kubernetes 0.28.4 and matching go version

Signed-off-by: Amir Alavi <amiralavi7@gmail.com>

vendor/k8s.io/klog/v2/internal/buffer/buffer.go

@@ -30,14 +30,16 @@ import (
 var (
 	// Pid is inserted into log headers. Can be overridden for tests.
 	Pid = os.Getpid()
+
+	// Time, if set, will be used instead of the actual current time.
+	Time *time.Time
 )
 
 // Buffer holds a single byte.Buffer for reuse. The zero value is ready for
 // use. It also provides some helper methods for output formatting.
 type Buffer struct {
 	bytes.Buffer
-	Tmp  [64]byte // temporary byte array for creating headers.
-	next *Buffer
+	Tmp [64]byte // temporary byte array for creating headers.
 }
 
 var buffers = sync.Pool{
@@ -122,6 +124,9 @@ func (buf *Buffer) FormatHeader(s severity.Severity, file string, line int, now
 
 	// Avoid Fprintf, for speed. The format is so simple that we can do it quickly by hand.
 	// It's worth about 3X. Fprintf is hard.
+	if Time != nil {
+		now = *Time
+	}
 	_, month, day := now.Date()
 	hour, minute, second := now.Clock()
 	// Lmmdd hh:mm:ss.uuuuuu threadid file:line]
@@ -157,6 +162,9 @@ func (buf *Buffer) SprintHeader(s severity.Severity, now time.Time) string {
 
 	// Avoid Fprintf, for speed. The format is so simple that we can do it quickly by hand.
 	// It's worth about 3X. Fprintf is hard.
+	if Time != nil {
+		now = *Time
+	}
 	_, month, day := now.Date()
 	hour, minute, second := now.Clock()
 	// Lmmdd hh:mm:ss.uuuuuu threadid file:line]