feat: upgrade solc-typed-ast to v18.2.4

[0xChin]

Adds support to solidity 0.8.27 and solidity 0.8.28

[0xteddybear]

consider adding a test (most likely in test/parser/test.ts) testing something that breaks with the previous version of the parser but is handled well with the new one (no need to test all breaking changes, just what made you realize this had to be updated is enough)

[0xChin]

consider adding a test (most likely in test/parser/test.ts) testing something that breaks with the previous version of the parser but is handled well with the new one (no need to test all breaking changes, just what made you realize this had to be updated is enough)

Every test in the parser runs the following line in the beforeAll statement:

const compileResult = await getFileCompiledSource('test/contracts/ParserTest.sol');

When it tries to compile a version not supported by the AST parser, it breaks, so I'm upgrading all contracts version to latest this way test will break with the previous version of the parser but is handled well with the new one

@0xteddybear lmk if this is enough

Edit: Just modified the testing approach, now there is a LatestVersion contract and a specific test in test/parser/test.ts