libct/configs: fix/improve deprecation notices

The per-file deprecation in cgroup_deprecated.go is not working,
let's replace it.

Link to Hooks.Run in Hook.Run deprecation notice.

Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>

libcontainer/configs/cgroup_deprecated.go

@@ -1,7 +1,8 @@
-package configs // Deprecated: use [github.com/opencontainers/cgroups].
+package configs
 
 import "github.com/opencontainers/cgroups"
 
+// Deprecated: use [github.com/opencontainers/cgroups].
 type (
 	Cgroup         = cgroups.Cgroup
 	Resources      = cgroups.Resources
@@ -14,12 +15,14 @@ type (
 	IfPrioMap      = cgroups.IfPrioMap
 )
 
+// Deprecated: use [github.com/opencontainers/cgroups].
 const (
 	Undefined = cgroups.Undefined
 	Frozen    = cgroups.Frozen
 	Thawed    = cgroups.Thawed
 )
 
+// Deprecated: use [github.com/opencontainers/cgroups].
 var (
 	NewWeightDevice   = cgroups.NewWeightDevice
 	NewThrottleDevice = cgroups.NewThrottleDevice

libcontainer/configs/config.go

@@ -458,7 +458,7 @@ type Capabilities struct {
 	Ambient []string `json:"Ambient,omitempty"`
 }
 
-// Deprecated: use (Hooks).Run instead.
+// Deprecated: use [Hooks.Run] instead.
 func (hooks HookList) RunHooks(state *specs.State) error {
 	for i, h := range hooks {
 		if err := h.Run(state); err != nil {