Fix missing order field in TemplatesMetadata deserialization

[soosinha]

Description

order field is missing while deserializing TemplatesMetadata object. This is because it is the first field in the serialized content and we are moving to the next token just before deserialization.

Related Issues

NA

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 ed48b59: 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?

[github-actions]

❌ Gradle check result for 0915cb4: 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?

[github-actions]

❕ Gradle check result for 8e7b724: UNSTABLE

• TEST FAILURES:

      1 org.opensearch.gateway.RecoveryFromGatewayIT.testShardStoreFetchMultiNodeMultiIndexesUsingBatchAction

Please review all flaky tests that succeeded after retry and create an issue if one does not already exist to track the flaky failure.

[codecov]

Codecov Report

Attention: Patch coverage is 75.00000% with 1 line in your changes missing coverage. Please review.

Project coverage is 71.92%. Comparing base (e146f13) to head (de02738).
Report is 28 commits behind head on main.

Files with missing lines	Patch %	Lines
...opensearch/cluster/metadata/TemplatesMetadata.java	75.00%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main   #15509      +/-   ##
============================================
- Coverage     71.92%   71.92%   -0.01%     
- Complexity    63483    63496      +13     
============================================
  Files          5244     5244              
  Lines        296911   296910       -1     
  Branches      42879    42879              
============================================
- Hits         213557   213552       -5     
- Misses        65799    65837      +38     
+ Partials      17555    17521      -34     

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[github-actions]

❕ Gradle check result for de02738: UNSTABLE

Please review all flaky tests that succeeded after retry and create an issue if one does not already exist to track the flaky failure.