Merge pull request #63059 from ceshihao/upgrade_json_package_fix_base64_newline

Automatic merge from submit-queue (batch tested with PRs 59965, 59115, 63076, 63059). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Upgrade dep json-iterator/go to fix base64 decode bug

**What this PR does / why we need it**:
upgrade dep `json-iterator/go` to fix base64 decode bug #62742

**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #62742

**Special notes for your reviewer**:
Just upgrade `json-iterator/go` to latest which includes base64 decode fix https://github.com/json-iterator/go/pull/266
No other code changes

**Release note**:

```release-note
None
```

Kubernetes-commit: 3dbcd1ddcee786f443f89a82514bbd9c6ad06c99

vendor/k8s.io/client-go/util/cert/io.go

@@ -17,7 +17,11 @@ limitations under the License.
 package cert
 
 import (
+	"crypto"
+	"crypto/ecdsa"
+	"crypto/rsa"
 	"crypto/x509"
+	"encoding/pem"
 	"fmt"
 	"io/ioutil"
 	"os"
@@ -101,6 +105,27 @@ func LoadOrGenerateKeyFile(keyPath string) (data []byte, wasGenerated bool, err
 	return generatedData, true, nil
 }
 
+// MarshalPrivateKeyToPEM converts a known private key type of RSA or ECDSA to
+// a PEM encoded block or returns an error.
+func MarshalPrivateKeyToPEM(privateKey crypto.PrivateKey) ([]byte, error) {
+	switch t := privateKey.(type) {
+	case *ecdsa.PrivateKey:
+		derBytes, err := x509.MarshalECPrivateKey(t)
+		if err != nil {
+			return nil, err
+		}
+		privateKeyPemBlock := &pem.Block{
+			Type:  ECPrivateKeyBlockType,
+			Bytes: derBytes,
+		}
+		return pem.EncodeToMemory(privateKeyPemBlock), nil
+	case *rsa.PrivateKey:
+		return EncodePrivateKeyPEM(t), nil
+	default:
+		return nil, fmt.Errorf("private key is not a recognized type: %T", privateKey)
+	}
+}
+
 // NewPool returns an x509.CertPool containing the certificates in the given PEM-encoded file.
 // Returns an error if the file could not be read, a certificate could not be parsed, or if the file does not contain any certificates
 func NewPool(filename string) (*x509.CertPool, error) {