fix(接口定义): 修复case选择环境组执行生成报告有未执行的缺陷

--bug=1023586 --user=王孝刚 【接口测试】场景中引用了case，选择环境组，执行场景后，这个case还是没有环境
https://www.tapd.cn/55049933/s/1340015

api-test/backend/src/main/java/io/metersphere/service/MsHashTreeService.java

@@ -88,6 +88,7 @@ public class MsHashTreeService {
     private static final String FOLLOW_REDIRECTS = "followRedirects";
     private static final String AUTO_REDIRECTS = "autoRedirects";
     private static final String ALIAS = "alias";
+    private static final String INDEX = "index";
 
     public void setHashTree(JSONArray hashTree) {
         // 将引用转成复制
@@ -145,6 +146,7 @@ public class MsHashTreeService {
             if (apiTestCase != null) {
                 if (StringUtils.equalsIgnoreCase(element.optString(REFERENCED), REF)) {
                     JSONObject refElement = JSONUtil.parseObject(apiTestCase.getRequest());
+                    refElement.remove(INDEX);
                     ElementUtil.dataFormatting(refElement);
                     JSONArray array = refElement.optJSONArray(HASH_TREE);
                     ElementUtil.copyBean(element, refElement);