only register signal handling once

Signed-off-by: Jörn Friedrich Dreyer <jfd@butonic.de>

services/auth-basic/cmd/auth-basic/main.go

@@ -12,7 +12,7 @@ import (
 
 func main() {
 	cfg := defaults.DefaultConfig()
-	cfg.Context, _ = signal.NotifyContext(context.Background(), syscall.SIGINT, syscall.SIGTERM)
+	cfg.Context, _ = signal.NotifyContext(context.Background(), syscall.SIGINT, syscall.SIGTERM, syscall.SIGQUIT, syscall.SIGHUP)
 	if err := command.Execute(cfg); err != nil {
 		os.Exit(1)
 	}