Add support for stop-signal in stack command

Signed-off-by: Christophe Robin <crobin@nekoo.com>
Upstream-commit: b129a70b5c
Component: cli

components/cli/cli/compose/convert/service.go

@@ -142,6 +142,7 @@ func Service(
 				User:            service.User,
 				Mounts:          mounts,
 				StopGracePeriod: service.StopGracePeriod,
+				StopSignal:      service.StopSignal,
 				TTY:             service.Tty,
 				OpenStdin:       service.StdinOpen,
 				Secrets:         secrets,

components/cli/cli/compose/types/types.go

@@ -21,7 +21,6 @@ var UnsupportedProperties = []string{
 	"restart",
 	"security_opt",
 	"shm_size",
-	"stop_signal",
 	"sysctls",
 	"tmpfs",
 	"userns_mode",