fix: opt param (#1447)

Co-authored-by: arunma <arunma@tencent.com>

Author: gitmkn

tencentcloud/data_source_tc_teo_bot_managed_rules.go

@@ -92,6 +92,7 @@ func dataSourceTencentCloudTeoBotManagedRulesRead(d *schema.ResourceData, meta i
 	}
 
 	if v, ok := d.GetOk("entity"); ok {
+		entity = v.(string)
 		paramMap["entity"] = v
 	}