Update Solc version from 0.8.18 to 0.8.24

[jaybuidl]

Notable changes

v0.8.18

• Use named parameters in mappings

// before
mapping(address => uint256) public balanceOf;

// after
mapping(address userAddress => uint256 balance) public balanceOf;

v0.8.19:

• User-defined value types, blog post

v0.8.20:

• Defaults to EVM version Shanghai
• PUSH0 support: make that the target chain supports it, Arbitrum and Gnosis chain now support it.
  • Run cast call -r <RPC_URL> --create 0x5f, if it returns 0x then it supports it, otherwise it returns an error.

v0.8.21

• Immutable variables initialization is now optional
• Qualified access to foreign events now allows emitting events defined in other contracts not inherited from.

v0.8.22

• Ugly unchecked increments in for loops no longer necessary to save gas
• Events can now be defined at file-level, outside a contract

v0.8.23

• Nothing at language level

v0.8.24

• Support for Cancun features, not enabled by default
• Notable Cancun features
  • EIP-1153: Transient storage TSTORE and TLOAD opcodes, not in Solidity yet.
  • EIP-4844: Blob transactions, adds blobhash() and block. blobbasefee.
  • EIP-6780 SELFDESTRUCT limitations: it doesn't clear storage and contract code anymore unless the contract was created in the same transaction.

Related: kleros/kleros-v2#1510