update kubernetes dependencies to v1.25.0

Signed-off-by: Humble Chirammal <hchiramm@redhat.com>

vendor/golang.org/x/net/http2/transport.go

@@ -16,7 +16,6 @@ import (
 	"errors"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"log"
 	"math"
 	mathrand "math/rand"
@@ -501,12 +500,14 @@ func (t *Transport) RoundTripOpt(req *http.Request, opt RoundTripOpt) (*http.Res
 			if req, err = shouldRetryRequest(req, err); err == nil {
 				// After the first retry, do exponential backoff with 10% jitter.
 				if retry == 0 {
+					t.vlogf("RoundTrip retrying after failure: %v", err)
 					continue
 				}
 				backoff := float64(uint(1) << (uint(retry) - 1))
 				backoff += backoff * (0.1 * mathrand.Float64())
 				select {
 				case <-time.After(time.Second * time.Duration(backoff)):
+					t.vlogf("RoundTrip retrying after failure: %v", err)
 					continue
 				case <-req.Context().Done():
 					err = req.Context().Err()
@@ -732,10 +733,13 @@ func (cc *ClientConn) healthCheck() {
 	// trigger the healthCheck again if there is no frame received.
 	ctx, cancel := context.WithTimeout(context.Background(), pingTimeout)
 	defer cancel()
+	cc.vlogf("http2: Transport sending health check")
 	err := cc.Ping(ctx)
 	if err != nil {
+		cc.vlogf("http2: Transport health check failure: %v", err)
 		cc.closeForLostPing()
-		return
+	} else {
+		cc.vlogf("http2: Transport health check success")
 	}
 }
 
@@ -1765,7 +1769,8 @@ func (cc *ClientConn) encodeHeaders(req *http.Request, addGzipHeader bool, trail
 		}
 		for _, v := range vv {
 			if !httpguts.ValidHeaderFieldValue(v) {
-				return nil, fmt.Errorf("invalid HTTP header value %q for header %q", v, k)
+				// Don't include the value in the error, because it may be sensitive.
+				return nil, fmt.Errorf("invalid HTTP header value for header %q", k)
 			}
 		}
 	}
@@ -2898,7 +2903,12 @@ func (t *Transport) logf(format string, args ...interface{}) {
 	log.Printf(format, args...)
 }
 
-var noBody io.ReadCloser = ioutil.NopCloser(bytes.NewReader(nil))
+var noBody io.ReadCloser = noBodyReader{}
+
+type noBodyReader struct{}
+
+func (noBodyReader) Close() error             { return nil }
+func (noBodyReader) Read([]byte) (int, error) { return 0, io.EOF }
 
 type missingBody struct{}