rebase: update kubernetes to 1.28.0 in main

updating kubernetes to 1.28.0
in the main repo.

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>

vendor/k8s.io/client-go/transport/cache.go

@@ -27,6 +27,7 @@ import (
 
 	utilnet "k8s.io/apimachinery/pkg/util/net"
 	"k8s.io/apimachinery/pkg/util/wait"
+	"k8s.io/client-go/tools/metrics"
 )
 
 // TlsTransportCache caches TLS http.RoundTrippers different configurations. The
@@ -80,11 +81,16 @@ func (c *tlsTransportCache) get(config *Config) (http.RoundTripper, error) {
 		// Ensure we only create a single transport for the given TLS options
 		c.mu.Lock()
 		defer c.mu.Unlock()
+		defer metrics.TransportCacheEntries.Observe(len(c.transports))
 
 		// See if we already have a custom transport for this config
 		if t, ok := c.transports[key]; ok {
+			metrics.TransportCreateCalls.Increment("hit")
 			return t, nil
 		}
+		metrics.TransportCreateCalls.Increment("miss")
+	} else {
+		metrics.TransportCreateCalls.Increment("uncacheable")
 	}
 
 	// Get the TLS options for this client config