rebase: update k8s.io packages to v0.29.0

Signed-off-by: Niels de Vos <ndevos@ibm.com>

vendor/k8s.io/apiserver/pkg/admission/config.go

@@ -20,7 +20,6 @@ import (
 	"bytes"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"os"
 	"path"
 	"path/filepath"
@@ -60,7 +59,7 @@ func ReadAdmissionConfiguration(pluginNames []string, configFilePath string, con
 		return configProvider{config: &apiserver.AdmissionConfiguration{}}, nil
 	}
 	// a file was provided, so we just read it.
-	data, err := ioutil.ReadFile(configFilePath)
+	data, err := os.ReadFile(configFilePath)
 	if err != nil {
 		return nil, fmt.Errorf("unable to read admission control configuration from %q [%v]", configFilePath, err)
 	}
@@ -141,7 +140,7 @@ func GetAdmissionPluginConfigurationFor(pluginCfg apiserver.AdmissionPluginConfi
 	}
 	// there is nothing nested, so we delegate to path
 	if pluginCfg.Path != "" {
-		content, err := ioutil.ReadFile(pluginCfg.Path)
+		content, err := os.ReadFile(pluginCfg.Path)
 		if err != nil {
 			klog.Fatalf("Couldn't open admission plugin configuration %s: %#v", pluginCfg.Path, err)
 			return nil, err