Bump github.com/containers/common from 0.6.1 to 0.8.0

Bumps [github.com/containers/common](https://github.com/containers/common) from 0.6.1 to 0.8.0.
- [Release notes](https://github.com/containers/common/releases)
- [Commits](https://github.com/containers/common/compare/v0.6.1...v0.8.0)

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

vendor/github.com/containers/common/pkg/config/default_linux.go

@@ -5,24 +5,10 @@ import (
 	"io/ioutil"
 	"strconv"
 	"strings"
-	"syscall"
 
 	"golang.org/x/sys/unix"
 )
 
-// isCgroup2UnifiedMode returns whether we are running in cgroup2 mode.
-func isCgroup2UnifiedMode() (isUnified bool, isUnifiedErr error) {
-	cgroupRoot := "/sys/fs/cgroup"
-
-	var st syscall.Statfs_t
-	if err := syscall.Statfs(cgroupRoot, &st); err != nil {
-		isUnified, isUnifiedErr = false, err
-	} else {
-		isUnified, isUnifiedErr = int64(st.Type) == int64(unix.CGROUP2_SUPER_MAGIC), nil
-	}
-	return
-}
-
 const (
 	oldMaxSize = uint64(1048576)
 )