feat: add query mc skin command

src/main/kotlin/cn/rtast/fancybot/Const.kt

@@ -105,5 +105,5 @@ val commands = listOf(
     QQMusicCommand(), BullShitGenerateCommand(),
     NiuziRankCommand(), NiuziBankRankCommand(),
     ShotSelfCommand(), TenSetuCommand(),
-    ReactionCommand()
+    ReactionCommand(), MCSkinCommand()
 )