add robbery plugin (#893)

* add robbery plugin

add robbery plugin
添加打劫插件，打劫群友的Atri币

* Update README.md, add robbery plugin

add robbery plugin
添加打劫功能的说明

* chore(lint): 改进代码样式

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Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

README.md

@@ -1135,6 +1135,14 @@ print("run[CQ:image,file="+j["img"]+"]")
 
   - 注：本插件来源于[tgbot](https://github.com/YukariChiba/tgbot/blob/main/modules/Reborn.py)
 
+</details>
+<details>
+  <summary>打劫</summary>
+
+`import _ "github.com/FloatTech/ZeroBot-Plugin/plugin/robbery"`
+
+- [x] 打劫[对方Q号|@对方QQ]
+
 </details>
 <details>
   <summary>在线代码运行</summary>