fix: gas: estimate gas with a zero base-fee

[simlecode]

关联的Issues (Related Issues)

https://github.com/filecoin-project/venus/issues/5311 lotus pr：https://github.com/filecoin-project/lotus/pull/8991

改动 (Proposed Changes)

附注 (Additional Info)

自查清单 (Checklist)

在你认为本 PR 满足被审阅的标准之前，需要确保 / Before you mark the PR ready for review, please make sure that:

• [x] 符合Venus项目管理规范中关于PR的相关标准 / The PR follows the PR standards set out in the Venus project management guidelines
• [x] 具有清晰明确的commit message / All commits have a clear commit message.
• [x] 包含相关的的测试用例或者不需要新增测试用例 / This PR has tests for new functionality or change in behaviour or not need to add new tests.
• [x] 包含相关的的指南以及文档或者不需要新增文档 / This PR has updated usage guidelines and documentation or not need
• [x] 通过必要的检查项 / All checks are green

[codecov-commenter]

Codecov Report

:exclamation: No coverage uploaded for pull request base (release/v1.8.0-pre-rc@050c4ee). Click here to learn what that means. The diff coverage is n/a.

Additional details and impacted files

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  Lines                            ?   65366           
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  Hits                             ?   16596           
  Misses                           ?   46594           
  Partials                         ?    2176