docs: fix incorrect project numbering in GSoC 2026 portal

[assu-2000]

Corrected inconsistent numbering across project listings.

Ensures proper alignment between project IDs and titles for accurate referencing.

Description of Changes

• Renumbered project entries to ensure sequential consistency
• Fixed mismatches between project numbers and titles
• Verified alignment across the entire GSoC 2026 project list

Related Issues

N/A (no associated issue)

Why this matters

Accurate project numbering is important for:

• Referencing projects in GSoC proposals
• Avoiding confusion for contributors and applicants
• Maintaining documentation quality and consistency

Checklist

• You have signed off your commits
• Ensure you follow best practices from our contributing guide
• (for big changes) I will post screenshots of the changes in a PR comment

[google-oss-prow]

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[google-oss-prow]

Hi @assu-2000. Thanks for your PR.

I'm waiting for a kubeflow member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

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[Arhell]

/ok-to-test