Fix update-application.js

[porcherface]

fixed applicationId -> id in updateApplication fields

Description

https://github.com/Vonage/vonage-node-code-snippets/issues/153

Motivation and Context

script was not working because applicationId is not a valid field (or at least not anymore).

Types of changes

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

Checklist

• My code follows the code style of this project.
• [ ] My change requires a change to the documentation.
• [ ] I have updated the documentation accordingly.
• I have read the CONTRIBUTING.md document.
• All new and existing tests passed.