feat(logs-context): implement priority-based resource attribute selection

[ahmadshaheer]

📄 Summary

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✅ Changes

• Feature: Brief description
• Bug fix: Brief description

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🧪 How to Test

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🔍 Related Issues

Closes #9147

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📋 Checklist

• Dev Review
• Test cases added (Unit/ Integration / E2E)
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👀 Notes for Reviewers

[nityanandagohain]

Here is an example log that I took and service.name is filter is appearing twice. although the result is correct it shouldn't happen

{
  "body": "hello error",
  "date": "2025-10-13T15:02:08.20352512+05:30",
  "id": "0iEqJIw1jdPs0XtC40W6tDIgvbk",
  "timestamp": "2025-10-13T15:02:08.20352512+05:30",
  "attributes": {
    "code.lineno": 117,
    "timestamp": 1760071793000000000,
    "code.filepath": "/Users/nityanandagohain/projects/examples/python-logs/gen_old_timestamp.py",
    "code.function": "<module>",
    "error.code": "200"
  },
  "resources": {
    "mynum:xyz": "126",
    "process.command_args": "testtgg",
    "service.instance.id": "inst-123",
    "service.name": "test",
    "source_type": "testing",
    "telemetry.sdk.language": "python",
    "telemetry.sdk.name": "opentelemetry",
    "telemetry.sdk.version": "1.27.0",
    "xyzxxxxx": "hello"
  },
  "scope": {},
  "severity_text": "ERROR",
  "severity_number": 17,
  "scope_name": "opentelemetry.sdk._logs._internal",
  "scope_version": "",
  "span_id": "",
  "trace_flags": 0,
  "trace_id": ""
}

[nityanandagohain]

let's not update the old regex

[nityanandagohain]

lgtm