Add RHEL9 Compatibility

[hisanhunais]

Purpose

• Add RHEL9 compatibility to product compatibility matrix.

Summary by CodeRabbit

• Documentation
  • Updated product compatibility documentation to include RHEL 9 support.
  • Enhanced formatting of the Operating Systems compatibility table for improved readability.

[coderabbitai]

Walkthrough

Documentation update to the product compatibility reference guide that adds RHEL 9 to the supported Operating Systems table and refines formatting and spacing for existing OS entries.

Changes

Cohort / File(s)	Summary
Compatibility Documentation en/docs/install-and-setup/setup/reference/product-compatibility.md	Added RHEL 9 row to the Operating Systems compatibility table; adjusted alignment and padding for Ubuntu 22.04 and Rocky Linux 9.3 entries.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Poem

🐰 A table grows with RHEL's new friend,
Nine rows of systems, spacing all mend,
Compatibility charts, tidy and bright,
Documentation dancing in pure markdown light! ✨

🚥 Pre-merge checks | ✅ 2 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Description check	⚠️ Warning	The description is minimal and incomplete. While it correctly identifies the purpose of adding RHEL9 compatibility, it lacks most required template sections such as Goals, Approach, Release notes, Documentation, Testing, and other critical information.	Complete the PR description using the repository template. At minimum, add Goals, Approach, Release notes, Documentation links, and test environment details to provide reviewers with comprehensive context.

✅ Passed checks (2 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately reflects the main change: adding RHEL 9 to the compatibility table. It is clear, concise, and directly related to the primary modification in the changeset.
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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