use fmt pkg for Errorf call in getter.go

Signed-off-by: James Sheppard <jgsheppa@protonmail.com>

pkg/getter/getter.go

@@ -18,11 +18,10 @@ package getter
 
 import (
 	"bytes"
+	"fmt"
 	"net/http"
 	"time"
 
-	"github.com/pkg/errors"
-
 	"helm.sh/helm/v3/pkg/cli"
 	"helm.sh/helm/v3/pkg/registry"
 )
@@ -169,7 +168,7 @@ func (p Providers) ByScheme(scheme string) (Getter, error) {
 			return pp.New()
 		}
 	}
-	return nil, errors.Errorf("scheme %q not supported", scheme)
+	return nil, fmt.Errorf("scheme %q not supported", scheme)
 }
 
 var httpProvider = Provider{