Support Typescript configuration files

[adriencaccia]

Hey @TastefulElk !

First, huge thanks for this amazing extension, it is a real life (time) saver 🙏

However, it does not work with Typescript serverless framework configuration files (supported since v1.72.0).

Example:

import type { AWS } from '@serverless/typescript';

const serverlessConfiguration: AWS = {
  ...
  provider: {
    ...
    iamRoleStatements: [{
      Effect: "Allow",
      Action: ['dynamodb:*'],
    }],
  },
};

module.exports = serverlessConfiguration;

I took a crack at it and submitted a PR 😉