Set timeout for requests.

So that prospector will be happy.

src/utils.py

@@ -49,7 +49,10 @@ class CheckURL(Check):
         """Checks validaty of a URL."""
         try:
             response = requests.request(
-                self._method, self._url, allow_redirects=False
+                self._method,
+                self._url,
+                allow_redirects=False,
+                timeout=30,
             )
             return (
                 response.status_code in self._valid_codes,