DingtalkHook：

[YunfengGao]

1.take 'getUrl' out of inner loop for better performance
2.use try-with-resources auto close CloseableHttpClient

[codecov]

Codecov Report

Merging #6773 (4ccf317) into master (3a7d6c0) will increase coverage by 13.62%.
The diff coverage is 50.00%.

❗ Current head 4ccf317 differs from pull request most recent head 384b956. Consider uploading reports for the commit 384b956 to get more accurate results

@@              Coverage Diff              @@
##             master    #6773       +/-   ##
=============================================
+ Coverage     40.54%   54.17%   +13.62%     
- Complexity     2975     4189     +1214     
=============================================
  Files           973     1802      +829     
  Lines         23976    38606    +14630     
  Branches       2346     4271     +1925     
=============================================
+ Hits           9720    20913    +11193     
- Misses        13421    16688     +3267     
- Partials        835     1005      +170     

Impacted Files	Coverage Δ	Complexity Δ
.../alarm/provider/dingtalk/DingtalkHookCallback.java	75.86% <50.00%> (+60.34%)	3.00 <0.00> (+1.00)
...erver/receiver/envoy/MetricServiceGRPCHandler.java	31.81% <0.00%> (-61.52%)	3.00% <0.00%> (ø%)
...er/receiver/envoy/AccessLogServiceGRPCHandler.java	18.51% <0.00%> (-37.04%)	2.00% <0.00%> (ø%)
...king/aop/server/receiver/mesh/MeshGRPCHandler.java	60.00% <0.00%> (-15.00%)	3.00% <0.00%> (+1.00%)	⬇️
...server/core/analysis/worker/AlarmNotifyWorker.java	85.71% <0.00%> (-14.29%)	3.00% <0.00%> (ø%)
.../server/core/analysis/data/ReadWriteSafeCache.java	68.18% <0.00%> (-10.77%)	3.00% <0.00%> (ø%)
...erver/core/analysis/data/MergableBufferedData.java	66.66% <0.00%> (-10.26%)	4.00% <0.00%> (ø%)
...lemetry/prometheus/PrometheusHistogramMetrics.java	70.58% <0.00%> (-9.42%)	2.00% <0.00%> (ø%)
...y/prometheus/httpserver/HttpServerInitializer.java	62.50% <0.00%> (-8.93%)	1.00% <0.00%> (ø%)
...ywalking/apm/agent/core/context/tag/StringTag.java	66.66% <0.00%> (-8.34%)	3.00% <0.00%> (ø%)
... and 1376 more

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