old_contents: {
      'name' : 'Available quantity of products in POS',
      'version' : '1.0.0',
      'author' : 'Ivan Yelizariev',
      'category': 'Point Of Sale',
      'website' : 'https://yelizariev.github.io',
      'price': 9.00,
      'depends' : ['point_of_sale', 'stock'],
      'data':[
          'data.xml',
          ],
      'qweb': [
          'static/src/xml/pos.xml',
      ],
      'installable': True,
  }
  
new_contents: {
      'name' : 'Available quantity of products in POS',
      'version' : '1.0.0',
      'author' : 'Ivan Yelizariev',
      'category': 'Point Of Sale',
      'website' : 'https://yelizariev.github.io',
      'price': 9.00,
      'currency': 'USD',
      'depends' : ['point_of_sale', 'stock'],
      'data':[
          'data.xml',
          ],
      'qweb': [
          'static/src/xml/pos.xml',
      ],
      'installable': True,
  }
  
subject: update description