Arbitrum & Base L2 Network Support

What's New

• Arbitrum and Base have been added to the list of L2 networks the gas reporter can emulate

  gasReporter: {
    L2: "arbitrum" | "base" | "optimism",
    L2Etherscan: "ABC....",
    coinmarketcap: "abc...",
  }

• blobBaseFee is now fetched directly from the OP stack GasOracle contracts (should be accurate)
• ⚠️ To get live blobBaseFee prices for L2 emulation you'll need to set the L2Etherscan api key option.
• the JSON output object now includes a separate intrinsic gas measurement for each transaction. This could be convenient if you want to do more complex post-processing with the gas data.

What's changed

• Bump undici from 5.28.2 to 5.28.3 by @dependabot in #175
• Fetch live blobBaseFee from OP Stack GasPriceOracle by @cgewecke in #222
• Add Base network support by @cgewecke in #223
• Collect intrinsicGas for JSON output by @cgewecke in #224
• Add Arbitrum support by @cgewecke in #225
• Update README image for 2.1.0 by @cgewecke in #226

Full Changelog: v2.0.2...v2.1.0