Update contract sizes benchmark

[github-actions]

This PR updates the contract size benchmarks after a recent merge to main.

Summary by CodeRabbit

• Chores
  • Updated contract size metrics for compiled test contracts to reflect current build measurements.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: de29ce31-1210-4d57-b01d-d9cc66a0df31

📥 Commits

Reviewing files that changed from the base of the PR and between 393f712 and b3efb1d.

📒 Files selected for processing (1)

• benches/contract_sizes.json

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Walkthrough

This PR updates benchmark metrics in benches/contract_sizes.json for OpenZeppelin Starknet test contracts. It adds a new size entry for ERC20ReturnFalseMock and revises bytecode and class sizes for multiple contracts, primarily showing reductions in compiled contract footprints.

Changes

Contract Size Metrics Update

Layer / File(s)	Summary
Benchmark Metrics benches/contract_sizes.json	Adds openzeppelin_test_common_ERC20ReturnFalseMock entry and updates size metrics (felts and bytes) for ERC20WrapperMock, all ERC4626* variants (AssetsFees, ExternalVault, Limits, Mock, MockWithHooks, Offset, SharesFees), and LinearVestingMock with revised (lower) compiled contract sizes.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Possibly related PRs

• Update contract sizes benchmark #1641: Both PRs modify benches/contract_sizes.json and update size metrics for the ERC4626 family and other compiled test contracts.
• Update contract sizes benchmark #1674: Both PRs update numeric size metrics in benches/contract_sizes.json for OpenZeppelin test contracts as part of benchmarks refresh cycles.
• Update contract sizes benchmark #1665: Both PRs update the same benches/contract_sizes.json benchmark file by adding or updating compiled contract size entries.

Suggested reviewers

• ericnordelo
• bidzyyys
• immrsd

Poem

🐰 Size metrics shrink and dance,
ERC4626 leads the prance,
New MockFalse hops in to stay,
Leaner contracts light the way! ✨

🚥 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 directly reflects the main change: updating benchmark metrics for contract sizes in the benches/contract_sizes.json file.
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 unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch update/contract-sizes-25313897357

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