Implementing minimum_severity and trace_based attributes for LoggerConfig

[om7057]

Fixes #4130

Changes

Description

Implements the missing minimum_severity and trace_based attributes for LoggerConfig in the declarative configuration spec.

Previously, LoggerConfigConfiguration only had an enabled boolean field. This PR adds:

• minimum_severity (type: SeverityNumber, default: trace) — allows filtering log records by severity level
• trace_based (type: bool, default: false) — enables/disables trace-based log filtering

These attributes align with the OpenTelemetry specification for logger configuration and enable users to control logging behavior via YAML configuration.

Example YAML usage:

logger_provider:
  logger_configurator/development:
    default_config:
      enabled: true
      minimum_severity: warn
      trace_based: false
    loggers:
      - name: my.noisy.logger
        config:
          minimum_severity: error
          trace_based: true

For significant contributions, please make sure you have completed the following items:

• CHANGELOG.md updated for non-trivial changes
• Unit tests have been added
• Changes in public API reviewed

[om7057]

Hi @marcalff could you please review the changes in this PR, and assign the issue?

[proost]

Can you update CHANGELOG.md?

[om7057]

Can you update CHANGELOG.md?

Yes, I've updated the CHANGELOG.md file as well. Could you please review all my changes and confirm whether this PR resolves the issue #4130 ?

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 82.02%. Comparing base (e649c7f) to head (0e0e2cd).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4131      +/-   ##
==========================================
+ Coverage   81.94%   82.02%   +0.09%     
==========================================
  Files         385      385              
  Lines       16067    16071       +4     
==========================================
+ Hits        13164    13181      +17     
+ Misses       2903     2890      -13     

Files with missing lines	Coverage Δ
sdk/src/configuration/configuration_parser.cc	77.04% <100.00%> (+0.90%)	⬆️

... and 1 file with indirect coverage changes

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