I am trying to deploy a static web app using Azure services with Github Actions.

The problem is, I need to run a script using NodeJS. I am using ESM modules which are working fine in Node v14. The problem is, during build task Azure (or github) uses v12.8 (LTS I guess) where ESM modules are not supported.

```
name: Azure Static Web Apps CI/CD

on:
  push:
    branches:
      - master
  pull_request:
    types: [opened, synchronize, reopened, closed]
    branches:
      - master

jobs:
  build_and_deploy_job:

    if: github.event_name == 'push' || (github.event_name == 'pull_request' && github.event.action != 'closed')

    runs-on: ubuntu-latest

    name: Build and Deploy Job

    steps:

      - uses: actions/checkout@v2
        with:
          submodules: true

      - name: Build And Deploy
        id: builddeploy
        uses: Azure/static-web-apps-deploy@v0.0.1-preview
        with:
          azure_static_web_apps_api_token: ${{ secrets.AZURE_STATIC_WEB_APPS_API_TOKEN_LEMON_GLACIER_0C510BD03 }}
          repo_token: ${{ secrets.GITHUB_TOKEN }} # Used for Github integrations (i.e. PR comments)
          action: "upload"
          ###### Repository/Build Configurations - These values can be configured to match you app requirements. ######
          # For more information regarding Static Web App workflow configurations, please visit: https://aka.ms/swaworkflowconfig
          app_location: "/" # App source code path
          api_location: "api" # Api source code path - optional
          app_artifact_location: "public" # Built app content directory - optional
          ###### End of Repository/Build Configurations ######

  close_pull_request_job:
    if: github.event_name == 'pull_request' && github.event.action == 'closed'
    runs-on: ubuntu-latest
    name: Close Pull Request Job
    steps:
      - name: Close Pull Request
        id: closepullrequest
        uses: Azure/static-web-apps-deploy@v0.0.1-preview
        with:
          azure_static_web_apps_api_token: ${{ secrets.AZURE_STATIC_WEB_APPS_API_TOKEN_LEMON_GLACIER_0C510BD03 }}
          action: "close"

```

I was trying to specify the Node version using this step:

```
- name: Setup Node 14.x
  uses: actions/setup-node@v1
    with:
      node-version: '14.x'

```

Still, the build process uses 12.8.

What am I doing wrong and is it possible to use a specific version in my case?