[type:feature]Http sync, add property.

[KevinClair]

Make sure that:

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

[codecov-commenter]

Codecov Report

Merging #2736 (9dbf267) into master (09768be) will decrease coverage by 0.08%.
The diff coverage is 25.00%.

@@             Coverage Diff              @@
##             master    #2736      +/-   ##
============================================
- Coverage     60.26%   60.17%   -0.09%     
+ Complexity     4409     4402       -7     
============================================
  Files           681      681              
  Lines         19577    19587      +10     
  Branches       1735     1740       +5     
============================================
- Hits          11798    11787      -11     
- Misses         6786     6803      +17     
- Partials        993      997       +4     

Impacted Files	Coverage Δ
...g/apache/shenyu/common/constant/HttpConstants.java	0.00% <0.00%> (ø)
...che/shenyu/sync/data/http/HttpSyncDataService.java	77.94% <25.00%> (+3.67%)	⬆️
...pache/shenyu/sync/data/http/config/HttpConfig.java	70.58% <30.00%> (-14.03%)	⬇️
...henyu/plugin/grpc/resolver/ShenyuNameResolver.java	62.76% <0.00%> (-9.58%)	⬇️
.../plugin/grpc/loadbalance/AbstractLoadBalancer.java	70.65% <0.00%> (-8.70%)	⬇️
...henyu/admin/service/impl/UpstreamCheckService.java	63.49% <0.00%> (-0.80%)	⬇️

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