fix: check if lower case url starts with http

Using lower() explicitly makes sure that there is no HTTP at the start.

pastepwn/analyzers/urlanalyzer.py

@@ -21,7 +21,7 @@ def _resolve_url(self, url):
         Returns False if the URL cannot be resolved.
         """
         # If the url doesn't start with a protocol, we'll test with http and https.
-        if not url.startswith("http"):
+        if not url.lower().startswith("http"):
             for protocol in ("http", "https"):
                 # If adding the protocol makes this resolve, the url works.
                 if self._resolve_url("{0}://{1}".format(protocol, url)):