deps: update runc to 1.1.0

This updates vendored runc/libcontainer to 1.1.0,
and google/cadvisor to a version updated to runc 1.1.0
(google/cadvisor#3048).

Changes in vendor are generated by (roughly):

        ./hack/pin-dependency.sh github.com/google/cadvisor v0.44.0
        ./hack/pin-dependency.sh github.com/opencontainers/runc v1.1.0
        ./hack/update-vendor.sh
        ./hack/lint-dependencies.sh # And follow all its recommendations.
        ./hack/update-vendor.sh
        ./hack/update-internal-modules.sh
        ./hack/lint-dependencies.sh # Re-check everything again.

Co-Authored-By: Kir Kolyshkin <kolyshkin@gmail.com>

vendor/github.com/opencontainers/runc/libcontainer/mount_linux.go

@@ -0,0 +1,83 @@
+package libcontainer
+
+import (
+	"strconv"
+
+	"golang.org/x/sys/unix"
+)
+
+// mountError holds an error from a failed mount or unmount operation.
+type mountError struct {
+	op     string
+	source string
+	target string
+	procfd string
+	flags  uintptr
+	data   string
+	err    error
+}
+
+// Error provides a string error representation.
+func (e *mountError) Error() string {
+	out := e.op + " "
+
+	if e.source != "" {
+		out += e.source + ":" + e.target
+	} else {
+		out += e.target
+	}
+	if e.procfd != "" {
+		out += " (via " + e.procfd + ")"
+	}
+
+	if e.flags != uintptr(0) {
+		out += ", flags: 0x" + strconv.FormatUint(uint64(e.flags), 16)
+	}
+	if e.data != "" {
+		out += ", data: " + e.data
+	}
+
+	out += ": " + e.err.Error()
+	return out
+}
+
+// Unwrap returns the underlying error.
+// This is a convention used by Go 1.13+ standard library.
+func (e *mountError) Unwrap() error {
+	return e.err
+}
+
+// mount is a simple unix.Mount wrapper. If procfd is not empty, it is used
+// instead of target (and the target is only used to add context to an error).
+func mount(source, target, procfd, fstype string, flags uintptr, data string) error {
+	dst := target
+	if procfd != "" {
+		dst = procfd
+	}
+	if err := unix.Mount(source, dst, fstype, flags, data); err != nil {
+		return &mountError{
+			op:     "mount",
+			source: source,
+			target: target,
+			procfd: procfd,
+			flags:  flags,
+			data:   data,
+			err:    err,
+		}
+	}
+	return nil
+}
+
+// unmount is a simple unix.Unmount wrapper.
+func unmount(target string, flags int) error {
+	err := unix.Unmount(target, flags)
+	if err != nil {
+		return &mountError{
+			op:     "unmount",
+			target: target,
+			flags:  uintptr(flags),
+			err:    err,
+		}
+	}
+	return nil
+}