chore: update agent supported distributions

[aphralG]

Proposed changes

Updated NGINX Agent V2 & V3 supported distributions to include Ubuntu 25.10, Debian 13 & SUSE Linux 16

v3

v2

Checklist

Before sharing this pull request, I completed the following checklist:

• I read the Contributing guidelines
• My branch adheres to the Git conventions
• My content changes adhere to the F5 NGINX Documentation style guide
• If my changes involve potentially sensitive information¹, I have assessed the possible impact
• I have waited to ensure my changes pass tests, and addressed any discovered issues

Footnotes

1. Potentially sensitive information includes personally identify information (PII), authentication credentials, and live URLs. Refer to the style guide for guidance about placeholder content. ↩

[github-actions]

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[ADubhlaoich]

@aphralG Should this be merged now?

[aphralG]

@ADubhlaoich Yes whenever the PR is good with ye it can be merged. Thank you