Fix flaky test of ClientConfManagerTest

[smallzhongfeng]

What changes were proposed in this pull request?

For https://github.com/apache/incubator-uniffle/actions/runs/3213433147/jobs/5253100348

org.opentest4j.AssertionFailedError: expected: <hdfs://host2/path2> but was: <hdfs://host3/path3>
	at org.junit.jupiter.api.AssertionUtils.fail(AssertionUtils.java:55)
	at org.junit.jupiter.api.AssertionUtils.failNotEqual(AssertionUtils.java:62)
	at org.junit.jupiter.api.AssertEquals.assertEquals(AssertEquals.java:182)
	at org.junit.jupiter.api.AssertEquals.assertEquals(AssertEquals.java:177)
	at org.junit.jupiter.api.Assertions.assertEquals(Assertions.java:1141)
	at org.apache.uniffle.coordinator.ClientConfManagerTest.dynamicRemoteByAppNumStrategyStorageTest(ClientConfManagerTest.java:200)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.junit.platform.commons.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:725)
	at org.junit.jupiter.engine.execution.MethodInvocation.proceed(MethodInvocation.java:60)
	at 

This is because scheduling thread didn't update the remote path timely. For this test, we will trigger update logic manually.

Why are the changes needed?

Fix flaky test.

Does this PR introduce any user-facing change?

No.

How was this patch tested?

UT passed.

[codecov-commenter]

Codecov Report

Merging #260 (653aef6) into master (4b31e3d) will decrease coverage by 0.01%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master     #260      +/-   ##
============================================
- Coverage     59.14%   59.13%   -0.02%     
+ Complexity     1342     1340       -2     
============================================
  Files           163      163              
  Lines          8837     8837              
  Branches        835      835              
============================================
- Hits           5227     5226       -1     
  Misses         3341     3341              
- Partials        269      270       +1     

Impacted Files	Coverage Δ
...e/coordinator/AppBalanceSelectStorageStrategy.java	72.00% <0.00%> (-4.00%)	⬇️
...nator/LowestIOSampleCostSelectStorageStrategy.java	68.83% <0.00%> (-2.60%)	⬇️
...rg/apache/uniffle/storage/common/LocalStorage.java	44.82% <0.00%> (+2.06%)	⬆️

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[jerqi]

LGTM