Bump the dev-dependencies group across 1 directory with 6 updates

Bumps the dev-dependencies group with 6 updates in the / directory:

| Package | From | To |
| --- | --- | --- |
| [@nomicfoundation/hardhat-ethers](https://github.com/nomicfoundation/hardhat) | `3.0.5` | `3.0.8` |
| [@nomicfoundation/hardhat-network-helpers](https://github.com/nomicfoundation/hardhat) | `1.0.10` | `1.0.12` |
| [ethers](https://github.com/ethers-io/ethers.js) | `6.13.2` | `6.13.4` |
| [hardhat](https://github.com/nomiclabs/hardhat) | `2.19.2` | `2.22.15` |
| [merkletreejs](https://github.com/miguelmota/merkletreejs) | `0.3.11` | `0.4.0` |
| [simple-statistics](https://github.com/simple-statistics/simple-statistics) | `7.8.5` | `7.8.7` |



Updates `@nomicfoundation/hardhat-ethers` from 3.0.5 to 3.0.8
- [Release notes](https://github.com/nomicfoundation/hardhat/releases)
- [Commits](https://github.com/nomicfoundation/hardhat/compare/@nomicfoundation/hardhat-ethers@3.0.5...@nomicfoundation/hardhat-ethers@3.0.8)

Updates `@nomicfoundation/hardhat-network-helpers` from 1.0.10 to 1.0.12
- [Release notes](https://github.com/nomicfoundation/hardhat/releases)
- [Commits](https://github.com/nomicfoundation/hardhat/compare/@nomicfoundation/hardhat-network-helpers@1.0.10...@nomicfoundation/hardhat-network-helpers@1.0.12)

Updates `ethers` from 6.13.2 to 6.13.4
- [Release notes](https://github.com/ethers-io/ethers.js/releases)
- [Changelog](https://github.com/ethers-io/ethers.js/blob/main/CHANGELOG.md)
- [Commits](ethers-io/ethers.js@v6.13.2...v6.13.4)

Updates `hardhat` from 2.19.2 to 2.22.15
- [Release notes](https://github.com/nomiclabs/hardhat/releases)
- [Commits](https://github.com/nomiclabs/hardhat/compare/hardhat@2.19.2...hardhat@2.22.15)

Updates `merkletreejs` from 0.3.11 to 0.4.0
- [Commits](https://github.com/miguelmota/merkletreejs/commits)

Updates `simple-statistics` from 7.8.5 to 7.8.7
- [Release notes](https://github.com/simple-statistics/simple-statistics/releases)
- [Changelog](https://github.com/simple-statistics/simple-statistics/blob/main/CHANGELOG.md)
- [Commits](https://github.com/simple-statistics/simple-statistics/commits)

---
updated-dependencies:
- dependency-name: "@nomicfoundation/hardhat-ethers"
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: dev-dependencies
- dependency-name: "@nomicfoundation/hardhat-network-helpers"
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: dev-dependencies
- dependency-name: ethers
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: dev-dependencies
- dependency-name: hardhat
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: dev-dependencies
- dependency-name: merkletreejs
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: dev-dependencies
- dependency-name: simple-statistics
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: dev-dependencies
...

Signed-off-by: dependabot[bot] <support@github.com>