feat: Add functionality to the Opentelemetry write interface to extract fields from attr to top-level data.

[paomian]

I hereby agree to the terms of the GreptimeDB CLA.

Refer to a related PR or issue link (optional)

What's changed and what's your intention?

• It is convenient to extract part of the data in attr to the top level for indexing data.
• If there are fields with the same name in different attr's, the log scope resource is selected in descending order of priority.
• The selected field defaults to tag
• If the selected field is not a simple field type (int string bool), an error is reported.

Checklist

• I have written the necessary rustdoc comments.
• I have added the necessary unit tests and integration tests.
• This PR requires documentation updates.

[shuiyisong]

Rest LGTM

[codecov]

Codecov Report

Attention: Patch coverage is 85.61873% with 43 lines in your changes missing coverage. Please review.

Project coverage is 83.98%. Comparing base (2ee1ce2) to head (195d999).
Report is 6 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4859      +/-   ##
==========================================
- Coverage   84.26%   83.98%   -0.28%     
==========================================
  Files        1129     1131       +2     
  Lines      208371   209147     +776     
==========================================
+ Hits       175575   175651      +76     
- Misses      32796    33496     +700     

[sunng87]

We will need to update document for this feature.

[coderabbitai]

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