fix: enable export-abi feature

[bidzyyys]

Resolves #439

PR Checklist

• Tests
• Documentation
• Changelog

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[codecov]

Codecov Report

Attention: Patch coverage is 60.86957% with 27 lines in your changes missing coverage. Please review.

Project coverage is 87.3%. Comparing base (6e4a147) to head (6884447).

Files with missing lines	Patch %	Lines
contracts/src/token/erc20/extensions/erc4626.rs	0.0%	12 Missing ⚠️
contracts/src/finance/vesting_wallet.rs	9.0%	10 Missing ⚠️
contracts/src/token/erc20/utils/safe_erc20.rs	0.0%	5 Missing ⚠️

Additional details and impacted files

Files with missing lines	Coverage Δ
contracts/src/access/control.rs	98.1% <100.0%> (+<0.1%)	⬆️
contracts/src/access/ownable.rs	96.5% <100.0%> (+3.2%)	⬆️
contracts/src/access/ownable_two_step.rs	98.8% <100.0%> (+<0.1%)	⬆️
contracts/src/token/erc1155/extensions/burnable.rs	100.0% <100.0%> (ø)
contracts/src/token/erc1155/mod.rs	97.3% <100.0%> (+0.2%)	⬆️
contracts/src/token/erc20/extensions/burnable.rs	100.0% <100.0%> (ø)
contracts/src/token/erc20/extensions/flash_mint.rs	81.1% <100.0%> (ø)
contracts/src/token/erc20/mod.rs	96.6% <100.0%> (+0.6%)	⬆️
contracts/src/token/erc721/extensions/burnable.rs	100.0% <100.0%> (ø)
...ontracts/src/token/erc721/extensions/enumerable.rs	96.4% <100.0%> (+<0.1%)	⬆️
... and 7 more