[DEV] Update GitHub MoE functional test cases

[Victarry]

What does this PR do ?

PR to main #3077

⚠️ For major changes (either in lines of code or in its impact), please make sure to first share discuss a design-doc with the team.

Contribution process

flowchart LR
    A[Pre-checks] --> B[PR Tests]
    subgraph Code Review/Approval
        C1[Expert Review] --> C2[Final Review]
    end
    B --> C1
    C2 --> D[Merge]

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Pre-checks

• I want this PR in a versioned release and have added the appropriate Milestone (e.g., Core 0.8)
• I have added relevant unit tests
• I have added relevant functional tests
• I have added proper typing to my code Typing guidelines
• I have added relevant documentation
• I have run the autoformatter.sh on my PR

Code review

The following process is enforced via the CODEOWNERS file for changes into megatron/core. For changes outside of megatron/core, it is up to the PR author whether or not to tag the Final Reviewer team.

For MRs into `main` branch

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⚠️ Only proceed to the next step once all reviewers have approved, merge-conflict are resolved and the CI is passing.
Final Review might get declined if these requirements are not fulfilled.

(Step 3): Final Review

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(Optional Step 4): Cherry-pick into release branch

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For MRs into `dev` branch

The proposed review process for `dev` branch is under active discussion.

MRs are mergable after one approval by either eharper@nvidia.com or zijiey@nvidia.com.

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[Victarry]

/ok to test 6711a81

[Victarry]

/ok to test db36cf4

[Victarry]

/ok to test 02c0aa9

[yanring]

Please submit a mirror PR to main, thanks

[Victarry]

Please submit a mirror PR to main, thanks

The newly added GitHub CI test cases(Muon, scoped cuda graph, CPU offloading) don't exist in the main branch. Will submit a PR when these features get merged into main branch.