remove isv dev details from mesh config while packing

Description

This PR removes application developer details from the meshConfig portion of deploy.yaml, generated when the developer runs aio app pack

The api-mesh get command returns information about the application developer, which can be omitted from deploy.yaml since a new mesh config can be created with only the data in the meshConfig key

{
  "lastUpdated": "2023-08-29T16:20:01.202Z",
  "meshConfig": {
    "sources": [
      {
        "name": "Commerce",
        "handler": {
          "graphql": {
            "endpoint": "https://venia.magento.com/graphql/"
          }
        }
      }
    ]
  },
  "meshId": "ee487aab-e92e-4035-a757-e18858ef7a92",
  "lastUpdatedBy": {
    "firstName": "Michael",
    "lastName": "Goberling",
    "userEmail": "mgoberling@adobe.com",
    "userId": "4E561E5C62E3F21E0A494122@AdobeID",
    "displayName": "Michael%20Goberling"
  },
  "meshStatus": "success",
  "meshURL": ""
}

Related Issue

Motivation and Context

Security

How Has This Been Tested?

npm run test, locally linked plugin

Screenshots (if appropriate):

Types of changes

[ ] Bug fix (non-breaking change which fixes an issue)
[x] New feature (non-breaking change which adds functionality)
[ ] Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

[x] I have signed the Adobe Open Source CLA.
[x] My code follows the code style of this project.
[ ] My change requires a change to the documentation.
[x] I have updated the documentation accordingly.
[x] I have read the CONTRIBUTING document.
[ ] I have added tests to cover my changes.
[x] All new and existing tests passed.

adobe / aio-cli-plugin-app

remove isv dev details from mesh config while packing #716