fix(arabot): remove unnecessary once in events

src/listeners/ban.ts

@@ -25,7 +25,6 @@ class BanJoin extends Listener {
   public constructor(context: Listener.Context, options: Listener.Options) {
     super(context, {
       ...options,
-      once: true,
       event: 'guildMemberAdd',
     });
   }

src/listeners/commandDenied.ts

@@ -24,7 +24,6 @@ class OldCommandDeniedListener extends Listener {
   public constructor(context: Listener.Context, options: Listener.Options) {
     super(context, {
       ...options,
-      once: false,
       event: 'messageCommandDenied',
     });
   }

src/listeners/deniedPermission.ts

@@ -24,7 +24,6 @@ class CommandDeniedListener extends Listener {
   public constructor(context: Listener.Context, options: Listener.Options) {
     super(context, {
       ...options,
-      once: false,
       event: 'chatInputCommandDenied',
     });
   }

src/listeners/verification/joinServer.ts

@@ -27,7 +27,6 @@ class VerificationReady extends Listener {
   public constructor(context: Listener.Context, options: Listener.Options) {
     super(context, {
       ...options,
-      once: true,
       event: 'guildMemberAdd',
     });
   }