Correct NeuralQueryBuilder doEquals() and doHashCode().

[bzhangam]

Description

NeuralQueryBuilder doEquals() and doHashCode() don't consider all the parameters so correct them to ensure those functions can work correctly if they are used for cache function.

Also fix the issue that we don't handle the queryImage properly. We should handle it similar to the queryText.

Related Issues

Resolves #1010

Check List

• New functionality includes testing.
• New functionality has been documented.
• API changes companion pull request created.
• Commits are signed per the DCO using --signoff.
• Public documentation issue/PR created.

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.
For more information on following Developer Certificate of Origin and signing off your commits, please check here.

[junqiu-lei]

Please check the failed CIs and update the changelog file.

[martin-gaievski]

Please check the failed CIs and update the changelog file.

Blocking issue is fixed, you can use CI after rebasing on main branch

[martin-gaievski]

CI actions are failing for the changes in this PR, please check:

 - org.opensearch.neuralsearch.query.HybridQueryBuilderTests.testHashAndEquals_whenSameOrIdenticalObject_thenReturnEqual
 - org.opensearch.neuralsearch.query.NeuralQueryBuilderTests.testHashAndEquals

[codecov]

Codecov Report

Attention: Patch coverage is 88.00000% with 3 lines in your changes missing coverage. Please review.

Project coverage is 80.21%. Comparing base (6ad6546) to head (966fe1d).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
...nsearch/neuralsearch/query/NeuralQueryBuilder.java	86.95%	1 Missing and 2 partials ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #1045      +/-   ##
============================================
+ Coverage     80.14%   80.21%   +0.07%     
- Complexity     1136     1141       +5     
============================================
  Files            87       87              
  Lines          3934     3953      +19     
  Branches        662      666       +4     
============================================
+ Hits           3153     3171      +18     
  Misses          532      532              
- Partials        249      250       +1     

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[opensearch-trigger-bot]

The backport to 2.x failed:

The process '/usr/bin/git' failed with exit code 1

To backport manually, run these commands in your terminal:

# Fetch latest updates from GitHub
git fetch
# Create a new working tree
git worktree add .worktrees/backport-2.x 2.x
# Navigate to the new working tree
cd .worktrees/backport-2.x
# Create a new branch
git switch --create backport/backport-1045-to-2.x
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick -x --mainline 1 ec6b30d1bbea94e7d96d2f2232f510f775047293
# Push it to GitHub
git push --set-upstream origin backport/backport-1045-to-2.x
# Go back to the original working tree
cd ../..
# Delete the working tree
git worktree remove .worktrees/backport-2.x

Then, create a pull request where the base branch is 2.x and the compare/head branch is backport/backport-1045-to-2.x.