Add support for nginx 1.28.1

[abridgel]

This PR adds nginx 1.28.1 to the CI build matrix for building binaries.

Summary by CodeRabbit

• Chores
  • Expanded nginx version matrix in CI pipeline testing to include additional version coverage.

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[coderabbitai]

Walkthrough

Added NGINX version 1.28.1 to the Build Binaries CI workflow's nginx_version matrix, extending the set of NGINX versions tested during the build process.

Changes

Cohort / File(s)	Summary
CI Configuration .github/workflows/ci.yml	Added NGINX 1.28.1 to the nginx_version matrix in the Build Binaries job

Possibly related PRs

• Build modules for NGINX 1.29.0 and 1.29.1 #911: Also extends nginx_version matrix by adding newer NGINX versions (1.29.0/1.29.1)
• Build modules for NGINX 1.27.5 #835: Similarly updates the CI workflow by adding an NGINX version to the build-binaries matrix
• Build modules for NGINX 1.28.0 #840: Adds NGINX 1.28.0 to the same CI workflow matrix in the same timeframe

Suggested labels

enhancement

🚥 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 'Add support for nginx 1.28.1' accurately and clearly summarizes the main change: adding nginx 1.28.1 to the CI build matrix.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment

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📜 Recent review details

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between e6c0346 and fa6780c.

📒 Files selected for processing (1)

• .github/workflows/ci.yml

🔇 Additional comments (1)

.github/workflows/ci.yml (1)

56-56: LGTM!

nginx-1.28.1 stable version has been released and includes a security fix for CVE-2025-53859 (memory disclosure in ngx_mail_smtp_module). The version is correctly positioned in the matrix between 1.28.0 and 1.29.0, following the existing format.

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[abridgel]

@lucacome Do you know how we can merge these changes in - we are just looking for support for 1.28.1

[abridgel]

@rnburn could you approve these changes for merging?

[lucacome]

Thanks @abridgel