Bump Hardhat version

[gvladika]

Change package version:

• node version 18 in CI
• Hardhat 2.17.2 (latest)

Bump of solidity-coverage required as well due to backward incompatiblity. Latest version solidity-coverage still failed:

ParserError: Expected ',' but got ';'
   --> src/mocks/Simple.sol:205:40:
    |
205 |         (c_83b71b6f(0x137081c2a34587c9); /* statement */
    |                                        ^


Error in plugin solidity-coverage: HardhatError: HH600: Compilation failed

Solution was to remove parenthesis around low level call in Simple.sol. And then use hardhat-ignore-warnings to silence 'unused return call value' compiler warning.

Also bumped hardhat-deploy and hardhat-gas-reporteralthough it was not neccessary.

[gzeoneth]

lgtm, I think we can rebase this on main

[gzeoneth]

might need to force merge to main

[hkalodner]

LGTM