Option to skip npm install in Azure/static-web-apps-deploy

**Is your feature request related to a problem? Please describe.**
I have a github workflow that runs npm install explicitly. It would desirable to be able to skip this as part of the `Azure/static-web-apps-deploy` action

**Describe the solution you'd like**
A option passed to the action to disable `npm install`

**Describe alternatives you've considered**
Not using `Azure/static-web-apps-deploy` action

**Additional context**