docs(26.03): link archived release notes to archive.docs.nvidia.com

[kheiss-uwzoo]

Summary

• Replace broken docs.nvidia.com previous-version release-notes links with direct archive.docs.nvidia.com URLs for retired NeMo Retriever doc trains (26.1.2 through 25.3.0).
• Point 24.12.1 and 24.12.0 at the archived 25.3.0 release-notes anchors.
• Convert the malformed pipe list into a proper markdown bullet list (same pattern as the 26.05 update in docs(26.05): link archived release notes to archive.docs.nvidia.com #2412).

Test plan

• Verify previous-versions list renders on the 26.3.0 release-notes page after publish
• Spot-check one archived link (for example 25.6.2) loads on archive.docs.nvidia.com
• Confirm 24.12.1 / 24.12.0 anchors land on the 25.3.0 archived page

[greptile-apps]

Greptile Summary

Updates the previous-version release-notes section.

• Replaces retired docs.nvidia.com links with direct archive.docs.nvidia.com URLs.
• Preserves the 24.12.1 and 24.12.0 section anchors on the archived 25.3.0 page.
• Converts malformed pipe-prefixed entries into a valid Markdown bullet list.

Confidence Score: 5/5

The documentation-only change appears safe to merge.

The updated links consistently follow the intended archive URL structure, retain the existing historical-release fragments, and use valid Markdown list syntax.

Important Files Changed

Filename	Overview
docs/docs/extraction/releasenotes-nv-ingest.md	Rewrites nine archived release-note links and corrects their list formatting without an identified actionable defect.

_{Reviews (1): Last reviewed commit: "docs(26.03): link archived release notes..." | Re-trigger Greptile}