Use @api3/eslint-plugin-commons for eslint

[dcroote]

A number of new rules require parserServices to be generated which results in the error:

You must therefore provide a value for the "parserOptions.project" property for @typescript-eslint/parser

Currently it isn't specified:

airnode/.eslintrc.js

Lines 9 to 12 in c43d981

	parserOptions: {
	ecmaVersion: 11,
	sourceType: 'module',
	},

Specifying this, however, isn't as easy as other repos given this monorepo structure and, I believe, how the packages' tsconfig.json files use references, potentially confusing ESLint on how to find the files.

Disabling these few rules allows it to run, but with quite a number of errors:

✖ 2921 problems (2921 errors, 0 warnings)
399 errors and 0 warnings potentially fixable with the `--fix` option.

[Siegrift]

Yeah, I think for Airnode we should disable many of the non-fixable rules just to make the migration simpler. These can always be re-enabled later as separate issues.