title: I get error "This package requires php >=7.2.5 but your HHVM version does not satisfy that requirement." when doing composer update
body: <p>Everytime I run composer update I get this error regarding HHVM version:</p>
  
  <pre><code>$ composer update
  Loading composer repositories with package information
  Updating dependencies (including require-dev)
  Your requirements could not be resolved to an installable set of packages.
  
    Problem 1
      - This package requires php &gt;=7.2.5 but your HHVM version does not satisfy that requirement.
    Problem 2
      - laravel/framework v7.14.1 requires php ^7.2.5 -&gt; your PHP version (7.3.5) overridden by "config.platform.php" version (7.0) does not satisfy that requirement.
      - laravel/framework v7.9.2 requires php ^7.2.5 -&gt; your PHP version (7.3.5) overridden by "config.platform.php" version (7.0) does not satisfy that requirement.
      - laravel/framework v7.9.1 requires php ^7.2.5 -&gt; your PHP version (7.3.5) overridden by "config.platform.php" version (7.0) does not satisfy that requirement.
      - etc.
  </code></pre>
  
  <p>My composer.json:</p>
  
  <pre><code>"require": {
      "php": "&gt;=7.2.5",
      "facade/ignition": "^2.0",
      "fideloper/proxy": "^4.0",
      "guzzlehttp/guzzle": "^6.5",
      "laravel/framework": "^7.0",
      "laravel/tinker": "^2.0",
      "laravelcollective/html": "^6.1",
      "maatwebsite/excel": "^3.1",
      "nunomaduro/collision": "^4.1",
      "yajra/laravel-datatables-oracle": "^9.10"
  },
  "require-dev": {
      "filp/whoops": "~2.0",
      "fzaninotto/faker": "^1.9",
      "mockery/mockery": "^1.4",
      "phpunit/phpunit": "^8.5"
  },
  </code></pre>
  
  <p>composer update --ignore-platform-reqs does work but I want to fix the error.</p>
  
  <p>How do I get rid of HHVM on Windows 10? (and switch it to PHP)</p>