input: Write a function to scrape reviews from a given URL and return a list of dictionaries with 'title' and 'text' keys.
  assert len(scrape_reviews('<url>')) > 0
  assert isinstance(scrape_reviews('<url>')[0], dict)
  assert 'title' in scrape_reviews('<url>')[0]
output: def scrape_reviews(url):
      import requests
      from bs4 import BeautifulSoup
  
      response = requests.get(url)
      soup = BeautifulSoup(response.text, 'html.parser')
  
      reviews = []
      for review in soup.select('.review'):  # Assuming reviews are within elements with class 'review'
          title = review.select_one('.review-title').text.strip() if review.select_one('.review-title') else 'No title'
          text = review.select_one('.review-text').text.strip() if review.select_one('.review-text') else 'No text'
          reviews.append({'title': title, 'text': text})
  
      return reviews