build(deps): bump github.com/containers/storage from 1.15.7 to 1.15.8

Bumps [github.com/containers/storage](https://github.com/containers/storage) from 1.15.7 to 1.15.8.
- [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/v1.15.7...v1.15.8)

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

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

@@ -68,6 +68,12 @@ type (
 	}
 )
 
+const (
+	tarExt  = "tar"
+	solaris = "solaris"
+	windows = "windows"
+)
+
 // Archiver allows the reuse of most utility functions of this package with a
 // pluggable Untar function.  To facilitate the passing of specific id mappings
 // for untar, an archiver can be created with maps which will then be passed to
@@ -325,15 +331,15 @@ func ReplaceFileTarWrapper(inputTarStream io.ReadCloser, mods map[string]TarModi
 func (compression *Compression) Extension() string {
 	switch *compression {
 	case Uncompressed:
-		return "tar"
+		return tarExt
 	case Bzip2:
-		return "tar.bz2"
+		return tarExt + ".bz2"
 	case Gzip:
-		return "tar.gz"
+		return tarExt + ".gz"
 	case Xz:
-		return "tar.xz"
+		return tarExt + ".xz"
 	case Zstd:
-		return "tar.zst"
+		return tarExt + ".zst"
 	}
 	return ""
 }
@@ -670,7 +676,7 @@ func createTarFile(path, extractDir string, hdr *tar.Header, reader io.Reader, L
 	}
 
 	// Lchown is not supported on Windows.
-	if Lchown && runtime.GOOS != "windows" {
+	if Lchown && runtime.GOOS != windows {
 		if chownOpts == nil {
 			chownOpts = &idtools.IDPair{UID: hdr.Uid, GID: hdr.Gid}
 		}

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

@@ -13,17 +13,17 @@ import (
 
 func statDifferent(oldStat *system.StatT, oldInfo *FileInfo, newStat *system.StatT, newInfo *FileInfo) bool {
 	// Don't look at size for dirs, its not a good measure of change
-	oldUid, oldGid := oldStat.UID(), oldStat.GID()
+	oldUID, oldGID := oldStat.UID(), oldStat.GID()
 	uid, gid := newStat.UID(), newStat.GID()
 	if cuid, cgid, err := newInfo.idMappings.ToContainer(idtools.IDPair{UID: int(uid), GID: int(gid)}); err == nil {
 		uid = uint32(cuid)
 		gid = uint32(cgid)
-		if oldcuid, oldcgid, err := oldInfo.idMappings.ToContainer(idtools.IDPair{UID: int(oldUid), GID: int(oldGid)}); err == nil {
-			oldUid = uint32(oldcuid)
-			oldGid = uint32(oldcgid)
+		if oldcuid, oldcgid, err := oldInfo.idMappings.ToContainer(idtools.IDPair{UID: int(oldUID), GID: int(oldGID)}); err == nil {
+			oldUID = uint32(oldcuid)
+			oldGID = uint32(oldcgid)
 		}
 	}
-	ownerChanged := uid != oldUid || gid != oldGid
+	ownerChanged := uid != oldUID || gid != oldGID
 	if oldStat.Mode() != newStat.Mode() ||
 		ownerChanged ||
 		oldStat.Rdev() != newStat.Rdev() ||

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

@@ -68,7 +68,7 @@ func UnpackLayer(dest string, layer io.Reader, options *TarOptions) (size int64,
 		// specific or Linux-specific, this warning should be changed to an error
 		// to cater for the situation where someone does manage to upload a Linux
 		// image but have it tagged as Windows inadvertently.
-		if runtime.GOOS == "windows" {
+		if runtime.GOOS == windows {
 			if strings.Contains(hdr.Name, ":") {
 				logrus.Warnf("Windows: Ignoring %s (is this a Linux image?)", hdr.Name)
 				continue