chg: updated tests/test_web.py in order to retrieve the API_TOKEN pro…

…vided via environment variable (secrets.API_KEY on GitHub workflow).

tests/test_web.py

@@ -2,14 +2,16 @@
 
 import unittest
 import time
+import os
 
 from pyvulnerabilitylookup import PyVulnerabilityLookup
 
 
 class TestPublic(unittest.TestCase):
 
     def setUp(self) -> None:
-        self.client = PyVulnerabilityLookup(root_url="https://vulnerability.circl.lu")
+        token = os.getenv("API_KEY", "")
+        self.client = PyVulnerabilityLookup(root_url="https://vulnerability.circl.lu", token=token)
 
     #  Test default