chore(beep boop 🤖): Bump uv.lock (main) (2026-02-26)

[svcnvidia-nemo-ci]

🚀 PR to bump uv.lock in main.

🤖 This PR will be merged automatically once CI passes.

Summary by CodeRabbit

• Chores
  • Updated Megatron-LM submodule to the latest version.

[svcnvidia-nemo-ci]

/ok to test 6b3c314

[copy-pr-bot]

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[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 401bf43 and 6b3c314.

⛔ Files ignored due to path filters (1)

• uv.lock is excluded by !**/*.lock

📒 Files selected for processing (1)

• 3rdparty/Megatron-LM

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📝 Walkthrough

Walkthrough

The Megatron-LM submodule reference is updated to a newer commit. No functional code changes are introduced; only the submodule pointer is modified.

Changes

Cohort / File(s)	Summary
Submodule Update 3rdparty/Megatron-LM	Submodule commit pointer updated from 23dd639cf3de30f3b9d8d0fae71ee31180be9ddd to c2782fd30675a94760cb5fe1ba97c3530285a8e4.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Possibly related PRs

• PR #2490: Updates the 3rdparty/Megatron-LM submodule pointer to a different target commit.
• PR #2191: Updates the git submodule pointer for 3rdparty/Megatron-LM with a different commit reference.
• PR #2348: Updates the Megatron-LM submodule pointer to a different commit.

Suggested reviewers

• maanug-nv
• yaoyu-33

🚥 Pre-merge checks | ✅ 3 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Title check	⚠️ Warning	The title mentions bumping 'uv.lock' but the actual change is updating the Megatron-LM submodule pointer, not the uv.lock file.	Update the title to accurately reflect the main change, such as 'chore: Update Megatron-LM submodule to c2782fd' or similar, or verify the PR objectives match the actual changeset.

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Test Results For Major Changes	✅ Passed	This PR contains only minor, automated maintenance changes - it updates the Megatron-LM submodule pointer and bumps the uv.lock dependency lock file. With only +1/-1 lines changed and no functional code modifications, these are routine dependency/submodule maintenance tasks.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch bump-ci-container-2026-02-26-main

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[yaoyu-33]

breaks by MLM 3424