Bump github.com/containers/storage from 1.14.0 to 1.15.1

Bumps [github.com/containers/storage](https://github.com/containers/storage) from 1.14.0 to 1.15.1.
- [Release notes](https://github.com/containers/storage/releases)
- [Changelog](https://github.com/containers/storage/blob/master/docs/containers-storage-changes.md)
- [Commits](https://github.com/containers/storage/compare/v1.14.0...v1.15.1)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

vendor/github.com/containers/storage/pkg/archive/copy.go

@@ -9,7 +9,6 @@ import (
 	"path/filepath"
 	"strings"
 
-	"github.com/containers/storage/pkg/system"
 	"github.com/sirupsen/logrus"
 )
 
@@ -198,7 +197,7 @@ func CopyInfoDestinationPath(path string) (info CopyInfo, err error) {
 			return CopyInfo{}, err
 		}
 
-		if !system.IsAbs(linkTarget) {
+		if !filepath.IsAbs(linkTarget) {
 			// Join with the parent directory.
 			dstParent, _ := SplitPathDirEntry(path)
 			linkTarget = filepath.Join(dstParent, linkTarget)