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/sysinfo/numcpu_linux.go

@@ -0,0 +1,44 @@
+// +build linux
+
+package sysinfo
+
+import (
+	"runtime"
+	"unsafe"
+
+	"golang.org/x/sys/unix"
+)
+
+// numCPU queries the system for the count of threads available
+// for use to this process.
+//
+// Issues two syscalls.
+// Returns 0 on errors. Use |runtime.NumCPU| in that case.
+func numCPU() int {
+	// Gets the affinity mask for a process: The very one invoking this function.
+	pid, _, _ := unix.RawSyscall(unix.SYS_GETPID, 0, 0, 0)
+
+	var mask [1024 / 64]uintptr
+	_, _, err := unix.RawSyscall(unix.SYS_SCHED_GETAFFINITY, pid, uintptr(len(mask)*8), uintptr(unsafe.Pointer(&mask[0])))
+	if err != 0 {
+		return 0
+	}
+
+	// For every available thread a bit is set in the mask.
+	ncpu := 0
+	for _, e := range mask {
+		if e == 0 {
+			continue
+		}
+		ncpu += int(popcnt(uint64(e)))
+	}
+	return ncpu
+}
+
+// NumCPU returns the number of CPUs which are currently online
+func NumCPU() int {
+	if ncpu := numCPU(); ncpu > 0 {
+		return ncpu
+	}
+	return runtime.NumCPU()
+}