docs: s3: SSE configuration docs

[GabrielYamin]

Summary by CodeRabbit

• Documentation
  • Added configuration parameter documentation for S3 output encryption options: sse and sse_kms_key_id supporting SSE-S3, SSE-KMS, and DSSE-KMS encryption modes.
  • Included configuration examples demonstrating SSE-KMS encryption setup for S3 output plugin across multiple deployment scenarios.

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[coderabbitai]

📝 Walkthrough

Walkthrough

The S3 output plugin documentation is updated with two new public configuration parameters (sse and sse_kms_key_id) describing server-side encryption options. Example Fluent Bit configuration blocks are added to demonstrate SSE-KMS encryption usage in both general and PutObject scenarios.

Changes

Cohort / File(s)	Summary
S3 Output Plugin Documentation pipeline/outputs/s3.md	Added documentation for sse and sse_kms_key_id configuration parameters covering SSE-S3, SSE-KMS, and DSSE-KMS encryption options. Inserted example Fluent Bit configuration blocks (YAML and conf formats) demonstrating SSE-KMS setup for general usage and PutObject operations.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Suggested labels

4.2.2

Suggested reviewers

• esmerel

Poem

🐰 A document grows, encryption takes flight,
SSE and KMS shine oh-so-bright!
Examples now bloom in YAML and conf,
S3 secrets safe—no encryption gone wrong! 🔐

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title 'docs: s3: SSE configuration docs' directly and concisely summarizes the main change: adding SSE configuration documentation to the S3 output plugin. It accurately reflects the primary objective of the PR.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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[patrick-stephens]

@GabrielYamin I think this is functionality waiting for the PR to be merged right?

[GabrielYamin]

@patrick-stephens, The BL PR is still in draft, I'll be opening it for review very soon.
fluent/fluent-bit#11410
Thank you for the fast response!!!

[GabrielYamin]

PR is ready for review @patrick-stephens
Thanks :)