Wildcard field use only 3-gram to index

[HUSTERGS]

Description

Accorrding the test result of #17099 , change wildcard field to only index 3-gram of the input data, instead of 1-3 gram, to reduce the overall index size caused by long positing list of single and double charaters, which is not really helpful when search. And also help to increase the write speed.

Related Issues

Resolves #17099

Check List

• Functionality includes testing.
• API changes companion pull request created, if applicable.
• Public documentation issue/PR created, if applicable.

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[github-actions]

❌ Gradle check result for 3abbea7: FAILURE

Please examine the workflow log, locate, and copy-paste the failure(s) below, then iterate to green. Is the failure a flaky test unrelated to your change?

[andrross]

@msfroh Is this worth creating a rolling upgrade test case for to ensure compatibility across the versions?

@HUSTERGS Can you rebase this with the latest from main? I think the bwc tests are failing due to a version bump.

[github-actions]

❌ Gradle check result for b3576d9: FAILURE

Please examine the workflow log, locate, and copy-paste the failure(s) below, then iterate to green. Is the failure a flaky test unrelated to your change?

[HUSTERGS]

Flaky tests: #17347

[msfroh]

Flaky tests: #17347

Oh, shoot! That one is my fault. I made it "less flaky" a couple of weeks ago, but apparently missed something.

[github-actions]

✅ Gradle check result for b3576d9: SUCCESS

[codecov]

Codecov Report

Attention: Patch coverage is 97.05882% with 1 line in your changes missing coverage. Please review.

Project coverage is 72.32%. Comparing base (38e4b33) to head (b3576d9).
Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
...g/opensearch/index/mapper/WildcardFieldMapper.java	97.05%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main   #17349      +/-   ##
============================================
- Coverage     72.41%   72.32%   -0.09%     
+ Complexity    65569    65478      -91     
============================================
  Files          5291     5291              
  Lines        304338   304321      -17     
  Branches      44181    44179       -2     
============================================
- Hits         220376   220101     -275     
- Misses        65917    66186     +269     
+ Partials      18045    18034      -11     

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