Enforce file:/// scheme and no netloc [integration]

Author: agriyakhetarpal

micropip/wheelinfo.py

@@ -70,6 +70,7 @@ def from_url(cls, url: str) -> "WheelInfo":
         """
         parsed_url = urlparse(url)
         if not parsed_url.scheme:
+            url = "file:///" + url
             parsed_url = ParseResult(
                 scheme="file",
                 netloc=parsed_url.netloc,