mod: Use errors.As to check for specific error

Signed-off-by: Joshua Duffney <[email protected]>

pkg/keymanagementprovider/azurekeyvault/provider.go

@@ -24,6 +24,7 @@ import (
 	"encoding/base64"
 	"encoding/json"
 	"encoding/pem"
+	"errors"
 	"fmt"
 	"strconv"
 	"strings"
@@ -170,8 +171,10 @@ func (s *akvKMProvider) GetCertificates(ctx context.Context) (map[keymanagementp
 		secretBundle, err := s.kvClient.GetSecret(ctx, s.vaultURI, keyVaultCert.Name, keyVaultCert.Version)
 		if err != nil {
 			// certificate is disabled, remove it from the map
-			if de, ok := err.(autorest.DetailedError); ok {
-				if re, ok := de.Original.(*azure.RequestError); ok {
+			var de autorest.DetailedError
+			if errors.As(err, &de) {
+				var re *azure.RequestError
+				if errors.As(de.Original, &re) {
 					if re.ServiceError.Code == "SecretDisabled" {
 						certBundle, err := s.kvClient.GetCertificate(ctx, s.vaultURI, keyVaultCert.Name, keyVaultCert.Version)
 						if err != nil {