Update groups.csv (#375)

Author: CiiLu

_data/groups.csv

@@ -1,6 +1,6 @@
 name,link,status
 HMCL 用户群 ① (633640264),https://qm.qq.com/q/fvJueufsvC,已满
-HMCL 用户群 ② (203232161),https://qm.qq.com/q/N7hgdNYfy,
+HMCL 用户群 ② (203232161),https://qm.qq.com/q/N7hgdNYfy,已满
 HMCL 用户群 ③ (201034984),https://qm.qq.com/q/7sbMrFm9CE,
 HMCL 用户群 ④ (533529045),https://qm.qq.com/q/ACmZa98tGg,已满
 HMCL 用户群 ⑤ (744304553),https://qm.qq.com/q/MlVArSCMwM,已满