Migrate webapps-deploy to OneDeploy

[dannysongg]

NOTE: The changes in this PR are dependent on the following PR getting merged and released: microsoft/pipelines-appservice-lib#99. It contains the changes to the Kudu service library that webapps-deploy consumes.

This change is to move the webapps-deploy Github Action to the new OneDeploy API. It is designed to be backwards compatible with webapps-deploy@v2. Regardless, this should be released as webapps-deploy@v3 to ensure that no existing users are regressed. Usage of the new action will look something like this:

- name: Deploy to Azure Web App
  id: deploy-to-webapp
  uses: azure/webapps-deploy@v3
  with:
    app-name: ${{ env.AZURE_WEBAPP_NAME }}
    publish-profile: ${{ secrets.AZURE_WEBAPP_PUBLISH_PROFILE }}
    package: '*.war'
    type: (jar, war, zip, static)
    clean: (true, false)
    target-path: (i.e. /home/site/wwwroot/test, /home/site/wwwroot/test.war)
    restart: (true, false)

The onedeploy-test branch in my fork has the required node_modules and can be used to test these changes before the piplines-appservice-lib PR gets merged. The test build can be invoked with:

  - name: Deploy to Azure Web App
    id: deploy-to-webapp
    uses: dannysongg/webapps-deploy-ds@onedeploy-test

[github-actions]

This PR is idle because it has been open for 14 days with no activity.

[jvano]

Looks good!