🐍🏖️ Cancun StateTest Format Bug Fix

Release v2.1.0 primarily fixes a small bug introduced within the previous release where transition forks are used within the new StateTest format. This was highlighted by @chfast within #405 (#405), where the fork name ShanghaiToCancunAtTime15k was found within state tests.

🧪 Test Cases

• ✨ EIP-4844: Adds test_blob_gas_subtraction_tx() verifying the blob gas fee is subtracted from the sender before executing the blob tx (#407).

🛠️ Framework

• 🐞 State tests generated with transition forks no longer use the transition fork name in the fixture output, instead they use the actual enabled fork according to the state test's block number and timestamp (#406).

📋 Misc

• ✨ Use run-parallel and shared wheel packages for tox (#408).

Full Changelog: v2.0.0...v2.1.0