[#3907]perf: Make `lastUpdateTimestamp` volatile so that the expiration task would see this quicker

[xdshent]

reference Eureka

#3907

[coveralls]

Coverage decreased (-0.02%) to 49.144% when pulling 7b8f7b06d10b12313a7b5c65c56586dd10c7ae26 on xdshent:develop into 9b87205c6d44e1c08aa5ae9aee6f2b28a60bb586 on apache:develop.

[codecov-commenter]

Codecov Report

Merging #3908 (7b8f7b0) into develop (9b87205) will decrease coverage by 0.24%. The diff coverage is n/a.

@@              Coverage Diff              @@
##             develop    #3908      +/-   ##
=============================================
- Coverage      45.09%   44.84%   -0.25%     
+ Complexity      7645     7605      -40     
=============================================
  Files            977      977              
  Lines          67965    67965              
  Branches        8985     8985              
=============================================
- Hits           30646    30482     -164     
- Misses         33552    33698     +146     
- Partials        3767     3785      +18     

Impacted Files	Coverage Δ
...e/rocketmq/namesrv/routeinfo/RouteInfoManager.java	65.38% <ø> (-0.16%)	:arrow_down:
.../broker/subscription/SubscriptionGroupManager.java	68.79% <0.00%> (-14.19%)	:arrow_down:
...n/java/org/apache/rocketmq/test/util/StatUtil.java	16.19% <0.00%> (-14.09%)	:arrow_down:
...org/apache/rocketmq/common/stats/StatsItemSet.java	41.79% <0.00%> (-8.96%)	:arrow_down:
...va/org/apache/rocketmq/logging/inner/Appender.java	29.21% <0.00%> (-7.87%)	:arrow_down:
...etmq/namesrv/processor/ClientRequestProcessor.java	70.37% <0.00%> (-3.71%)	:arrow_down:
...ava/org/apache/rocketmq/filter/util/BitsArray.java	59.82% <0.00%> (-3.42%)	:arrow_down:
...ache/rocketmq/broker/topic/TopicConfigManager.java	59.03% <0.00%> (-3.06%)	:arrow_down:
...tmq/broker/longpolling/PullRequestHoldService.java	63.36% <0.00%> (-2.98%)	:arrow_down:
...he/rocketmq/controller/impl/DLedgerController.java	70.32% <0.00%> (-2.75%)	:arrow_down:
... and 23 more

:mega: Codecov can now indicate which changes are the most critical in Pull Requests. Learn more

[xdshent]

PTAL~

[github-actions[bot]]

This PR is stale because it has been open for 365 days with no activity. It will be closed in 3 days if no further activity occurs. If you wish not to mark it as stale, please leave a comment in this PR.

[github-actions[bot]]

This PR was closed because it has been inactive for 3 days since being marked as stale.