Hardhat v2.29.0

This is a small Hardhat 2 release that upgrades the version of Mocha to make it compatible with Node 26, and uses a newer version of typescript when initializing projects.

Changes

• a81ad1d: Upgrade Mocha to version ^11.1.0 to make it compatible with Node 26.
• 6ea5832: Update the initialization of new projects to use a newer typescript