out_http: Adding new http_bearer_token_file option to http

[fernandoalexandre]

Add http_bearer_token_file to http property table.

Related to: fluent/fluent-bit#12165

Summary by CodeRabbit

• Documentation
  • Documented the new http_bearer_token_file configuration option for providing bearer authorization tokens from a file.
  • Clarified that it cannot be used with basic authentication or OAuth2.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: ae18a66a-9103-44cc-9253-ba3d372ea85c

📥 Commits

Reviewing files that changed from the base of the PR and between 2180b7a and 21d69a3.

📒 Files selected for processing (1)

• pipeline/outputs/http.md

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📝 Walkthrough

Walkthrough

The HTTP output configuration documentation now describes http_bearer_token_file, including its bearer-token purpose, incompatibility with basic authentication and OAuth2, and _none_ default.

Changes

HTTP output authentication

Layer / File(s)	Summary
Document bearer token file option pipeline/outputs/http.md	Adds the http_bearer_token_file configuration parameter to the HTTP output table with its purpose, incompatibilities, and default value.

Estimated code review effort: 1 (Trivial) | ~2 minutes

Suggested reviewers: eschabell, patrick-stephens

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly matches the documented addition of the new http_bearer_token_file HTTP option.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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