chore(beep boop 🤖): Bump uv.lock (main, mcore-main) (2026-03-23)

[svcnvidia-nemo-ci]

🚀 PR to bump uv.lock in main.

🤖 This PR will be merged automatically once CI passes.

Summary by CodeRabbit

• Chores
  • Updated internal dependencies and build configurations.

[svcnvidia-nemo-ci]

/ok to test 601f1ae

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[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: 56966122-7148-442b-9309-ffbcd71c126a

📥 Commits

Reviewing files that changed from the base of the PR and between 7260d62 and 601f1ae.

⛔ Files ignored due to path filters (1)

• uv.lock is excluded by !**/*.lock

📒 Files selected for processing (2)

• .main.commit
• 3rdparty/Megatron-LM

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📝 Walkthrough

Walkthrough

The PR updates the .main.commit file and the 3rdparty/Megatron-LM git submodule pointer to new commit references. Both changes involve updating revision hash values with no behavioral logic modifications.

Changes

Cohort / File(s)	Summary
Submodule and commit reference updates .main.commit, 3rdparty/Megatron-LM	Updated git submodule and commit reference pointers to new target commits.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Possibly related PRs

• chore(beep boop 🤖): Bump uv.lock (main) (2026-03-18) #2873: Updates the same .main.commit and 3rdparty/Megatron-LM submodule pointer to different target hashes.
• chore(beep boop 🤖): Bump uv.lock (main) (2026-03-16) #2813: Performs identical file-level changes, updating both the Megatron-LM submodule pointer and commit reference.
• chore(beep boop 🤖): Bump uv.lock (main) (2026-02-06) #2256: Updates the 3rdparty/Megatron-LM git submodule pointer to a different target commit.

Suggested reviewers

• yaoyu-33
• maanug-nv

🚥 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 changes are only to '.main.commit' and 'Megatron-LM' submodule pointers, not the uv.lock file.	Update the title to accurately reflect the actual changes, such as 'chore: Update Megatron-LM submodule and main commit pointer' or similar.

✅ 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	PR contains only minor changes (dependency and lock file updates). Test results documentation is required only for major changes per check instructions.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch bump-ci-container-2026-03-23-main-main

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