[type:refactor] refactor shenyu-admin sync data listener.

[yunlongn]

refactor shenyu-admin sync data listener. abstract Template

Make sure that:

• [x] You have read the contribution guidelines.
• [x] You submit test cases (unit or integration tests) that back your changes.
• [x] Your local test passed ./mvnw clean install -Dmaven.javadoc.skip=true.

[codecov-commenter]

Codecov Report

Merging #3940 (89793f1) into master (7fbe081) will decrease coverage by 0.19%. The diff coverage is 96.24%.

@@             Coverage Diff              @@
##             master    #3940      +/-   ##
============================================
- Coverage     70.41%   70.22%   -0.20%     
+ Complexity     6743     6686      -57     
============================================
  Files           922      924       +2     
  Lines         25293    25099     -194     
  Branches       2287     2270      -17     
============================================
- Hits          17811    17625     -186     
+ Misses         6114     6107       -7     
+ Partials       1368     1367       -1     

Impacted Files	Coverage Δ
...stener/zookeeper/ZookeeperDataChangedListener.java	81.81% <ø> (-8.85%)	:arrow_down:
...dmin/listener/AbstractNodeDataChangedListener.java	92.95% <92.95%> (ø)
...dmin/listener/AbstractListDataChangedListener.java	97.36% <97.36%> (ø)
...min/listener/consul/ConsulDataChangedListener.java	85.71% <100.00%> (-11.48%)	:arrow_down:
...min/listener/etcd/EtcdDataDataChangedListener.java	100.00% <100.00%> (+8.33%)	:arrow_up:
...admin/listener/nacos/NacosDataChangedListener.java	53.33% <100.00%> (-40.15%)	:arrow_down:
...shenyu/sync/data/consul/ConsulSyncDataService.java	78.33% <0.00%> (-1.67%)	:arrow_down:

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