fix: add workaround that `intToHex` produce valid `Quantity` format

[YuyaMaruyama21D4E]

Hi and thank you for maintaining this library! I would like to fix an issue where event hooks are not working in MetaMask.

Specification

• geth and the spec no longer support leading zero
• Reference:
  • https://github.com/ethereum/execution-apis/issues/40#issuecomment-906400324
  • https://github.com/NomicFoundation/hardhat/issues/1585#issuecomment-906638245

Issue Description

• Events emitted by the contract aren't being received when subscribing with .contract.on("EventName", callback)
• Event hooks occasionally fail to arrive
• This issue is specific to MetaMask (works fine with other wallets)
• Many dApps are affected by MetaMask's subscription functionality issues
• Related issues:
  • https://github.com/MetaMask/eth-json-rpc-filters/issues/70
  • https://github.com/MetaMask/eth-json-rpc-filters/issues/152
  • https://github.com/MetaMask/metamask-extension/issues/8220

Proposed Solution

• This PR is intended as a temporary workaround until the intToHex function in hexUtils.js is properly audited
  • Reference for auditing function:
    • https://github.com/MetaMask/eth-json-rpc-filters/pull/71#issuecomment-1240001443
• Added local intToHex implementation to log-filter.js
  • Following the same approach already used in getBlocksForRange.js