fix wording in CheckHierarchy attr for trying to moderate an Admin

Author: GreemDev

src/Bot/Systems/Commands/Text/Attributes/Checks/CheckHierarchyAttribute.cs

@@ -16,7 +16,7 @@ public override ValueTask<CheckResult> CheckAsync(object argument, CommandContex
         }
 
         return ctx.IsAdmin(u)
-            ? CheckResult.Failed("Cannot ban someone with the configured Admin role.")
+            ? CheckResult.Failed("Cannot act on someone with the configured Admin role.")
             : ctx.User.Hierarchy > u.Hierarchy
                 ? CheckResult.Successful
                 : CheckResult.Failed("Cannot act on someone in a higher, or equal, hierarchy position than yourself.");