build(deps): bump github.com/coreos/go-systemd/v22 from 22.3.2 to 22.4.0

Bumps [github.com/coreos/go-systemd/v22](https://github.com/coreos/go-systemd) from 22.3.2 to 22.4.0.
- [Release notes](https://github.com/coreos/go-systemd/releases)
- [Commits](https://github.com/coreos/go-systemd/compare/v22.3.2...v22.4.0)

---
updated-dependencies:
- dependency-name: github.com/coreos/go-systemd/v22
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

2 files changed, 39 insertions, 0 deletions

diff --git a/vendor/github.com/coreos/go-systemd/v22/dbus/dbus.go b/vendor/github.com/coreos/go-systemd/v22/dbus/dbus.go
index cff5af1a6..147f756fe 100644
--- a/vendor/github.com/coreos/go-systemd/v22/dbus/dbus.go
+++ b/vendor/github.com/coreos/go-systemd/v22/dbus/dbus.go
@@ -176,6 +176,11 @@ func (c *Conn) Close() {
 	c.sigconn.Close()
 }
 
+// Connected returns whether conn is connected
+func (c *Conn) Connected() bool {
+	return c.sysconn.Connected() && c.sigconn.Connected()
+}
+
 // NewConnection establishes a connection to a bus using a caller-supplied function.
 // This allows connecting to remote buses through a user-supplied mechanism.
 // The supplied function may be called multiple times, and should return independent connections.
diff --git a/vendor/github.com/coreos/go-systemd/v22/dbus/methods.go b/vendor/github.com/coreos/go-systemd/v22/dbus/methods.go
index fa04afc70..074148cb4 100644
--- a/vendor/github.com/coreos/go-systemd/v22/dbus/methods.go
+++ b/vendor/github.com/coreos/go-systemd/v22/dbus/methods.go
@@ -417,6 +417,29 @@ func (c *Conn) listUnitsInternal(f storeFunc) ([]UnitStatus, error) {
 	return status, nil
 }
 
+// GetUnitByPID returns the unit object path of the unit a process ID
+// belongs to. It takes a UNIX PID and returns the object path. The PID must
+// refer to an existing system process
+func (c *Conn) GetUnitByPID(ctx context.Context, pid uint32) (dbus.ObjectPath, error) {
+	var result dbus.ObjectPath
+
+	err := c.sysobj.CallWithContext(ctx, "org.freedesktop.systemd1.Manager.GetUnitByPID", 0, pid).Store(&result)
+
+	return result, err
+}
+
+// GetUnitNameByPID returns the name of the unit a process ID belongs to. It
+// takes a UNIX PID and returns the object path. The PID must refer to an
+// existing system process
+func (c *Conn) GetUnitNameByPID(ctx context.Context, pid uint32) (string, error) {
+	path, err := c.GetUnitByPID(ctx, pid)
+	if err != nil {
+		return "", err
+	}
+
+	return unitName(path), nil
+}
+
 // Deprecated: use ListUnitsContext instead.
 func (c *Conn) ListUnits() ([]UnitStatus, error) {
 	return c.ListUnitsContext(context.Background())
@@ -828,3 +851,14 @@ func (c *Conn) listJobsInternal(ctx context.Context) ([]JobStatus, error) {
 
 	return status, nil
 }
+
+// Freeze the cgroup associated with the unit.
+// Note that FreezeUnit and ThawUnit are only supported on systems running with cgroup v2.
+func (c *Conn) FreezeUnit(ctx context.Context, unit string) error {
+	return c.sysobj.CallWithContext(ctx, "org.freedesktop.systemd1.Manager.FreezeUnit", 0, unit).Store()
+}
+
+// Unfreeze the cgroup associated with the unit.
+func (c *Conn) ThawUnit(ctx context.Context, unit string) error {
+	return c.sysobj.CallWithContext(ctx, "org.freedesktop.systemd1.Manager.ThawUnit", 0, unit).Store()
+}