Bump github.com/containers/storage from 1.26.0 to 1.29.0

Bumps [github.com/containers/storage](https://github.com/containers/storage) from 1.26.0 to 1.29.0.
- [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/v1.26.0...v1.29.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>

vendor/github.com/containers/storage/pkg/lockfile/lockfile_unix.go

@@ -191,7 +191,7 @@ func (l *lockfile) Touch() error {
 	if !l.locked || (l.locktype != unix.F_WRLCK) {
 		panic("attempted to update last-writer in lockfile without the write lock")
 	}
-	l.stateMutex.Unlock()
+	defer l.stateMutex.Unlock()
 	l.lw = stringid.GenerateRandomID()
 	id := []byte(l.lw)
 	_, err := unix.Seek(int(l.fd), 0, os.SEEK_SET)
@@ -211,12 +211,12 @@ func (l *lockfile) Touch() error {
 // Modified indicates if the lockfile has been updated since the last time it
 // was loaded.
 func (l *lockfile) Modified() (bool, error) {
-	id := []byte(l.lw)
 	l.stateMutex.Lock()
+	id := []byte(l.lw)
 	if !l.locked {
 		panic("attempted to check last-writer in lockfile without locking it first")
 	}
-	l.stateMutex.Unlock()
+	defer l.stateMutex.Unlock()
 	_, err := unix.Seek(int(l.fd), 0, os.SEEK_SET)
 	if err != nil {
 		return true, err