docs: pipeline: inputs: node-exporter-metrics: mark timex collector released in 5.1

[eschabell]

• Update timex collector version from "Unreleased" to "5.1"
• Remove dead "Collectors marked Unreleased" caveat paragraph (no other collector carries that flag)
• Add timex to the Linux default metrics list and note its adjtimex(2) dependency

Note, update for code changes without corresponding docs PR.

Summary by CodeRabbit

• New Features
  • Enabled the timex metrics collector by default on Linux.
• Documentation
  • Updated the collector’s availability information to version 5.1.
  • Removed outdated release-status notes and issue references.

[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: 5902a1ba-0165-4916-8cdc-71fddecdbe73

📥 Commits

Reviewing files that changed from the base of the PR and between df5b6df and 38f06f1.

📒 Files selected for processing (1)

• pipeline/inputs/node-exporter-metrics.md

---

📝 Walkthrough

Walkthrough

The Linux metrics configuration now enables the timex collector by default. The documentation marks timex as available in version 5.1 and removes its unreleased-status note.

Changes

Timex collector documentation

Layer / File(s)	Summary
Update timex collector configuration and status pipeline/inputs/node-exporter-metrics.md	The default Linux collector list includes timex. The availability entry now specifies version 5.1 and removes obsolete unreleased-collector text and its issue link.

Estimated code review effort: 1 (Trivial) | ~3 minutes

Possibly related PRs

• fluent/fluent-bit-docs#2579: Updates the same node-exporter-metrics.md timex collector documentation.
• fluent/fluent-bit-docs#2645: Modifies the Linux defaults and timex collector status in the same documentation.

Suggested reviewers: patrick-stephens, ngillen

🚥 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 identifies the documentation change and states that the timex collector was released in version 5.1.
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

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands.}

[eschabell]

@coderabbitai review

[coderabbitai]

⚠️ Action not completed

Review rate limited.

Note: CodeRabbit is an incremental review system and does not re-review already reviewed commits. This command is applicable only when automatic reviews are paused.

[eschabell]

@coderabbitai review

[coderabbitai]

✅ Action performed

Review finished.

Note: CodeRabbit is an incremental review system and does not re-review already reviewed commits. This command is applicable only when automatic reviews are paused.

[eschabell]

@patrick-stephens ready for review!