fix(#3940): Add release navigation links to _index.md

[Sapthagiri777]

fix(#3940): Add release navigation links to _index.md

• Fixed 'file not found' error in releases directory [attached_file:1]
• Added navigation links for Kubeflow 0.6-1.9 (12 links total)
• Verified diff shows all links added [file:307]

Description of Changes

Added missing release navigation links to content/en/docs/kubeflow-platform/releases/_index.md.
The releases page was empty (just frontmatter) causing "file not found" errors during versioning.

Related Issues

Closes: #3940

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Sapthagiri777 (Jaeger CNCF contributor - 3 PRs merged)

[google-oss-prow]

Hi @Sapthagiri777. Thanks for your PR.

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[Arhell]

/ok-to-test

[Sapthagiri777]

Hi @thesuperzapper @zijianjoy @Arhell , just pushed a fix for the DCO sign-off that was failing earlier. Everything looks good now on my end. Let me know if there's anything else needed - happy to make changes. Thanks!

[juliusvonkohout]

You are missing at least 1.10 and 1.11

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[Sapthagiri777]

Hi @juliusvonkohout, thanks for the feedback! I've added the missing links for 1.10 and 1.11 now.
Just a heads up - the Netlify deploy is failing due to a submodule issue (No url found for submodule path 'kserve'), which seems to be a repo configuration problem rather than something in my changes. Let me know if there's anything else needed on my end!

[juliusvonkohout]

Please rebase (not merge) to master and see if that helps.

[Sapthagiri777]

@juliusvonkohout, I've rebased to master as you suggested. The rebase went through fine, but the Netlify deploy is still failing with the same submodule error (No url found for submodule path 'kserve'). Looks like this might be a repo-level issue with the .gitmodules config. Is there anything else I can try, or does this need to be fixed upstream first?

[juliusvonkohout]

Please align with @varodrig i am currently catching up on a lot of tasks.