add required imports

Signed-off-by: Varsha U N <varshaun58@gmail.com>

Author: VarshaUN

scanpipe/pipes/fetch.py

@@ -28,6 +28,7 @@
 import re
 import subprocess
 import tempfile
+import cgi
 from cgi import parse_header
 from collections import namedtuple
 from pathlib import Path