feat: Cli core upgrade

[shrutiburman]

Contributing to TwilioReasons to remove some e2e testcases:
Removed some tests because:

• These testcases were deploying a new video app with actual api keys & secrets configured on circleci. It's unclear which account's creds are those. Also, second guessing the process of storing the secrets anywhere.
• The existing testing suite of deploying apps yields a 404 error from serverless api. Failed Pipeline run

Current coverage report:

All third-party contributors acknowledge that any contributions they provide will be made under the same open-source license that the open-source project is provided under.

• I acknowledge that all my contributions will be made under the project's license.

[piyushtank]

We, SDK team attempted to review this PR but we do not have expertise on the codebase. So, we cannot give any meaningful feedbacks.

[seancoleman2]

@shrutiburman did you ensure this doesn't break any of the ahoy apps that rely on this plugin?

[shrutiburman]

Wasn't aware of the ahoy apps. Have only tested the default cmds that the plugin has. Create, deploy and delete a video app. Can you help me with the ahoy apps implementation?

[seancoleman2]

This plugin was created to to enable customers to build/deploy our Video reference apps. Here are instructions to deploy the React app: https://github.com/twilio/twilio-video-app-react#clone-the-repository

I would assume upgrading will be fine but just wanted to call it out.

[shrutiburman]

Based on the readme file of the twilio-video-app-react, I did some basic acceptance testing. Gist here. It'd be great if you or someone from the video-app-react team could take a look at it.

[seancoleman2]

@shrutiburman are these account credentials configured by the customer when they deploy the React / iOS / Android app? Or are you saying these are associated with a Twilio account?

[shrutiburman]

These account creds are configured on circle CI env and are referenced from there. These are associated with a Twilio account.