chore(deps-dev): bump hardhat from 2.0.11 to 2.6.4

[dependabot]

Bumps hardhat from 2.0.11 to 2.6.4.

Release notes

Sourced from hardhat's releases.

Hardhat v2.6.4

This release fixes a bug in Hardhat Network's solidity source maps processing. Thanks @​paulberg!

Hardhat v2.6.3

This release fixes a bug (#1564 ) that prevented Hardhat Network's tracing engine from working if an interface was used as a mapping key. Huge thanks to @​k06a for their contribution!

Hardhat v2.6.2

This release fixes an issue (#1828) with networks that support eth_feeHistory but that don't support EIP-1559.

hardhat-etherscan v2.1.6

This release adds support for verifying contracts in Arbiscan, the block explorer for Arbitrum.

Hardhat v2.6.1

This PR fixes three issues.

• The Hardhat node had an issue when you connected to it via websocket. Now websocket connections should work fine.
• debug_traceTransaction can be used with transactions sent from impersonated accounts.
• evm_setNextBlockTimestamp, evm_increaseTime and evm_mine now will accept hex strings as arguments.

Additionally, there’s a new advanced sample project that creates a realistic project boilerplate. Try it by running npx hardhat in an empty directory and choosing the “Create an advanced sample project” option.

Thanks to @​ngotchac, @​shuklaayush and @​wolflo for their contributions!

hardhat-etherscan v2.1.5

This version fixes a problem with verification in the Optimism networks.

Huge thanks to @​mds1 for working on this!

PR: #1775

Hardhat v2.6.0

This release enables the London hardfork by default in the Hardhat Network, changes some other default values in the configuration, and drops support for Node 10.

All of these are technically breaking changes, but most users shouldn't be affected by them. If you want to preserve the previous behavior, use Hardhat v2.5.0, or explicitly set the updated configuration values to their previous defaults.

The default values that have changed are:

• hardfork: the previous default was "berlin", the new default is "london"
• blockGasLimit: the previous default was 12_450_000, the new default is 30_000_000
• gasPrice: the previous default was 8_000_000_000, the new default is "auto".

Read this document to learn more about how we use semver and why and how we introduce breaking changes.

Hardhat v2.5.0

This release adds support for the upcoming London hardfork to Hardhat.

Enabling the London support

This version of Hardhat doesn't run Hardhat Network using London by default. To use this hardfork, you need to have these config fields:

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Commits

• 21ab17b Version Packages
• e92c0b5 Add changesets for existing unreleased changes
• 87470b6 Merge pull request #1867 from nomiclabs/fix-github-actions-paths
• fc9b9ee Fix github actions globs
• 4cbea36 Merge pull request #1857 from paulrberg/fix-uncompress-source-maps
• b62ddf3 Create mighty-schools-cross.md
• fb7f8b2 Version Packages
• 98b7548 Merge pull request #1831 from k06a/fix/mapping-key-types
• 95b195b Revert unneeded change
• a7bb4e1 Make sure the tracing engine works with older solcs
• Additional commits viewable in compare view

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[dependabot]

Superseded by #280.