Add utf-8 encoding

Signed-off-by: Tushar Goel <tushar.goel.dav@gmail.com>

Author: TG1999

tests/test_resolution.py

@@ -141,7 +141,7 @@ def test_without_supported_wheels():
     assert as_list == [
         "pkg:pypi/autobahn@22.3.2",
         "pkg:pypi/cffi@1.15.1",
-        "pkg:pypi/cryptography@38.0.0",
+        "pkg:pypi/cryptography@38.0.1",
         "pkg:pypi/hyperlink@21.0.0",
         "pkg:pypi/idna@3.3",
         "pkg:pypi/pycparser@2.21",