feat: add useSafe for governance:propose and governance:withdraw

[nicolasbrugneaux]

• Fixes expand --useSafe to more commands #503

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PR-Codex overview

This PR enhances the governance commands in the CLI by adding support for a new useSafe flag, which allows transactions to be executed through SAFE. It also improves documentation and adds checks for safe ownership in governance-related commands.

Detailed summary

• Updated --useSafe flag description in governance/approve.ts and documentation.
• Added useSafe and safeAddress flags to SafeFlags in flags.ts.
• Enhanced safeTransactionMetadataFromCeloTransactionObject function to accept a value parameter.
• Integrated useSafe checks in Withdraw and Propose commands.
• Added tests for using SAFE in withdraw-l2.test.ts and propose-l2.test.ts.
• Included setup instructions for SAFE contracts in multisigUtils.ts.

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Latest commit: 1e1adae

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[codecov]

Codecov Report

Attention: Patch coverage is 96.66667% with 1 line in your changes missing coverage. Please review.

Project coverage is 76.17%. Comparing base (f76274f) to head (1e1adae).

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #511      +/-   ##
==========================================
- Coverage   76.31%   76.17%   -0.14%     
==========================================
  Files         246      246              
  Lines       10386    10410      +24     
  Branches     1639     1651      +12     
==========================================
+ Hits         7926     7930       +4     
- Misses       2373     2374       +1     
- Partials       87      106      +19     

Components	Coverage Δ
celocli	86.13% <96.66%> (-0.43%)	⬇️
sdk	68.96% <ø> (ø)
wallets	73.30% <ø> (ø)
viem-sdks	95.08% <ø> (ø)