feat(msgpool): update max untrusted actor pending message limit

[akaladarshi]

Summary of changes

Changes introduced in this pull request:

• Update the MAX_UNTRUSTED_ACTOR_PENDING_MESSAGES to 100.
• Reference update in lotus feat(mempool): raise MaxUntrustedActorPendingMessages from 10 to 100 filecoin-project/lotus#13636

Reference issue to close (if applicable)

Closes

Other information and links

Change checklist

• I have performed a self-review of my own code,
• I have made corresponding changes to the documentation. All new code adheres to the team's documentation standards,
• I have added tests that prove my fix is effective or that my feature works (if possible),
• I have made sure the CHANGELOG is up-to-date. All user-facing changes should be reflected in this document.

Outside contributions

• I have read and agree to the CONTRIBUTING document.
• I have read and agree to the AI Policy document. I understand that failure to comply with the guidelines will lead to rejection of the pull request.

Summary by CodeRabbit

• Chores
  • Increased per-sender limit for pending messages accepted via the untrusted mempool path from 10 to 100 to expand message pool capacity.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Repository UI

Review profile: CHILL

Plan: Pro

Run ID: ce3014e7-9072-4e07-82d5-475b19e13e0a

📥 Commits

Reviewing files that changed from the base of the PR and between 0f85eec and 7f964d7.

📒 Files selected for processing (2)

• CHANGELOG.md
• src/message_pool/msgpool/msg_pool.rs

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Walkthrough

This PR increases the per-sender limit for messages accepted via the untrusted mempool path from 10 to 100 by updating a module-private constant in the message pool implementation and documenting the change in the changelog.

Changes

Untrusted mempool per-sender limit increase

Layer / File(s)	Summary
Per-sender limit constant update and changelog src/message_pool/msgpool/msg_pool.rs, CHANGELOG.md	MAX_UNTRUSTED_ACTOR_PENDING_MESSAGES is increased from 10 to 100, allowing a higher capacity for untrusted senders in the message pool. The change is documented in the changelog.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Suggested reviewers

• hanabi1224
• LesnyRumcajs

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately and concisely describes the main change: updating the max untrusted actor pending message limit from 10 to 100.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch akaladarshi/untrusted-pending-msg-limit

✨ Simplify code

• Create PR with simplified code
• Commit simplified code in branch akaladarshi/untrusted-pending-msg-limit

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 64.39%. Comparing base (0f85eec) to head (7f964d7).
✅ All tests successful. No failed tests found.

Additional details and impacted files

Files with missing lines	Coverage Δ
src/message_pool/msgpool/msg_pool.rs	87.75% <ø> (ø)

... and 4 files with indirect coverage changes

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