internal/pkg: use short wait delay

The cure is condemned at the point of cancellation and all of its state is destroyed by the deferred cleanup, so it makes little sense to wait for it much.

Signed-off-by: Ophestra <cat@gensokyo.uk>

internal/pkg/exec.go

@@ -194,7 +194,7 @@ func (a *execArtifact) Cure(c *CureContext) (err error) {
 
 const (
 	// execWaitDelay is passed through to [container.Params].
-	execWaitDelay = 15 * time.Second
+	execWaitDelay = time.Nanosecond
 )
 
 // cure is like Cure but allows optional host net namespace. This is used for
@@ -294,7 +294,6 @@ func (a *execArtifact) cure(c *CureContext, hostNet bool) (err error) {
 	defer cancel()
 
 	z := container.New(ctx, a.msg)
-	z.ForwardCancel = true
 	z.WaitDelay = execWaitDelay
 	z.SeccompPresets |= std.PresetStrict
 	z.ParentPerm = 0700