Update all patch updates (patch)

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@truffle/contract	4.2.30 -> 4.2.31
solidity-coverage	0.7.11 -> 0.7.12
truffle	5.1.53 -> 5.1.54

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Release Notes

trufflesuite/truffle

### [`v4.2.31`](https://togithub.com/trufflesuite/truffle/compare/ef903cad50018438be36d9ad2f2a59ebb7d130ac...1f9ab16819b7e0ea994a9add63d35d6a74932985) [Compare Source](https://togithub.com/trufflesuite/truffle/compare/ef903cad50018438be36d9ad2f2a59ebb7d130ac...1f9ab16819b7e0ea994a9add63d35d6a74932985)

sc-forks/solidity-coverage

### [`v0.7.12`](https://togithub.com/sc-forks/solidity-coverage/blob/master/CHANGELOG.md#​0712--2020-11-16) [Compare Source](https://togithub.com/sc-forks/solidity-coverage/compare/3d92e89c92d61c24e230d800bff9cc9c87f6bee9...c828d8bf7bab077bb66854e9e397cd94b9e4938e) =================== - Add Hardhat plugin support and allow coverage to run on HardhatEVM ([#​548](https://togithub.com/sc-forks/solidity-coverage/pull/548)) - Allow truffle projects to contain vyper contracts ([#​571](https://togithub.com/sc-forks/solidity-coverage/issues/571)) - Locate .coverage_contracts correctly for subfolder paths ([#​570](https://togithub.com/sc-forks/solidity-coverage/issues/570)) - Replace Web3 with thin rpc wrapper ([#​568](https://togithub.com/sc-forks/solidity-coverage/issues/568)) - Stop reporting assert statements as branches ([#​556](https://togithub.com/sc-forks/solidity-coverage/issues/556)) - Upgrade [@​truffle/provider](https://togithub.com/truffle/provider) to 0.2.24 ([#​550](https://togithub.com/sc-forks/solidity-coverage/issues/550)) - Upgrade solidity-parser/parser to 0.8.1 ([#​549](https://togithub.com/sc-forks/solidity-coverage/issues/549))

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