[MINOR]improvement(client/server): (RemoteMerger) Refactor to use mergeContext collect the arguments related

[maobaolong]

What changes were proposed in this pull request?

Refactor to use mergeContext collect the arguments related to remote merger

Why are the changes needed?

• Make code clean and friendly to other developer who do not attention to Remote Merger.
• Without api change while extends the mergeContext.

Does this PR introduce any user-facing change?

No.

How was this patch tested?

No need, just refactor.

[github-actions[bot]]

Test Results

 2 926 files  +31   2 926 suites  +31   6h 10m 0s :stopwatch: + 11m 40s  1 049 tests + 6   1 047 :white_check_mark: + 7   2 :zzz: ±0  0 :x:  - 1  13 045 runs  +72  13 015 :white_check_mark: +73  30 :zzz: ±0  0 :x:  - 1 

Results for commit 4106224c. ± Comparison against base commit 9f8951fe.

This pull request removes 6 and adds 12 tests. Note that renamed tests count towards both.

``` org.apache.uniffle.test.DynamicConfTest ‑ dynamicConfTest org.apache.uniffle.test.HadoopConfTest ‑ hadoopConfTest org.apache.uniffle.test.LargeSorterTest ‑ largeSorterTest org.apache.uniffle.test.RMWordCountTest ‑ wordCountTest org.apache.uniffle.test.SecondarySortTest ‑ secondarySortTest org.apache.uniffle.test.WordCountTest ‑ wordCountTest ``` ``` org.apache.uniffle.test.DynamicConfTest ‑ dynamicConfTest{ClientType}[1] org.apache.uniffle.test.DynamicConfTest ‑ dynamicConfTest{ClientType}[2] org.apache.uniffle.test.HadoopConfTest ‑ hadoopConfTest{ClientType}[1] org.apache.uniffle.test.HadoopConfTest ‑ hadoopConfTest{ClientType}[2] org.apache.uniffle.test.LargeSorterTest ‑ largeSorterTest{ClientType}[1] org.apache.uniffle.test.LargeSorterTest ‑ largeSorterTest{ClientType}[2] org.apache.uniffle.test.RMWordCountTest ‑ wordCountTest{ClientType}[1] org.apache.uniffle.test.RMWordCountTest ‑ wordCountTest{ClientType}[2] org.apache.uniffle.test.SecondarySortTest ‑ secondarySortTest{ClientType}[1] org.apache.uniffle.test.SecondarySortTest ‑ secondarySortTest{ClientType}[2] … ```

:recycle: This comment has been updated with latest results.

[jerqi]

@zhengchenyu Could you help me review this pull request?

[zhengchenyu]

@zhengchenyu Could you help me review this pull request?

Okay, I will review this PR. But I want to review until #2173 is finished. #2173 will bring performance improvement, but also many changes.

[maobaolong]

@jerqi Would you like to take a look?

[maobaolong]

@jerqi @zhengchenyu Thanks for your review!