Chore(hardhat)/hardhat ether version update

[Anmol-Dhiman]

PR-Codex overview

This PR updates various parts of the codebase to use ethers v6, fix styling in components, and improve contract deployment scripts.

Detailed summary

• Updated ethers imports and usage to version 6.
• Fixed styling in Timestamp component.
• Refactored contract deployment scripts for consistency and efficiency.

The following files were skipped due to too many changes: contracts/deploy/utils/getContractOrDeploy.ts, contracts/deploy/utils/deployTokens.ts, contracts/deploy/01-foreign-gateway-on-ethereum.ts, contracts/deploy/upgrade-kleros-core.ts, contracts/deploy/fix1148.ts, contracts/deploy/03-vea-mock.ts, contracts/deploy/01-foreign-gateway-on-gnosis.ts, contracts/test/proxy/index.ts, contracts/deploy/00-home-chain-arbitration.ts, contracts/test/rng/index.ts, contracts/scripts/simulations/utils.ts, contracts/deploy/00-home-chain-arbitration-neo.ts, contracts/deploy/00-home-chain-arbitration-university.ts, contracts/scripts/populateCourts.ts, contracts/test/arbitration/index.ts, contracts/test/integration/index.ts, contracts/test/evidence/index.ts, contracts/test/arbitration/staking.ts, contracts/scripts/simulations/tasks.ts, contracts/test/arbitration/draw.ts, contracts/scripts/keeperBot.ts, contracts/test/arbitration/staking-neo.ts, yarn.lock

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Summary by CodeRabbit

• Refactor

  • Updated various scripts and deployment files to replace AddressZero with ZeroAddress for consistency.
  • Modified import statements and function calls to improve code clarity and alignment with the latest ethers library version.
  • Enhanced event handling and logging mechanisms across deployment scripts.

• Chores

  • Updated dependencies in package.json to their latest versions for better performance and security.
  • Adjusted test command specification in GitHub Actions workflow for contracts testing.