Bump json5, @nomiclabs/hardhat-waffle and ethereum-waffle in /hardhat-demo#3

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dependabot/npm_and_yarn/hardhat-demo/json5-and-nomiclabs/hardhat-waffle-and-ethereum-waffle--removedchainstacklabs/foundry-vs-hardhat:dependabot/npm_and_yarn/hardhat-demo/json5-and-nomiclabs/hardhat-waffle-and-ethereum-waffle--removedCopy head branch name to clipboard