Upgrade solidity-parser to remove antlr4 warnings with node 14

[chatch]

Problem

Running the hardhat cli with Node 14 outputs the follow warnings:

(node:18497) Warning: Accessing non-existent property 'INVALID_ALT_NUMBER' of module exports inside circular dependency

More info from running hardhat cli with --trace-warnings:

(node:15755) Warning: Accessing non-existent property 'INVALID_ALT_NUMBER' of module exports inside circular dependency
    at emitCircularRequireWarning (internal/modules/cjs/loader.js:650:11)
    at Object.get (internal/modules/cjs/loader.js:664:5)
    at Object.<anonymous> (/home/hatch/projects/sb/startrail/app/node_modules/@solidity-parser/parser/dist/antlr4/RuleContext.js:32:46)

Antlr Fix

This is due to Antlr4 and was fixed here: antlr/antlr4#2834

It'ts fixed in

• Antlr 4.9: https://github.com/antlr/antlr4/releases/tag/4.9
• @solidity-parser/parser 0.10.1 (released yesterday)

So an upgrade of the @solidity-parser will hopefully fix this.