Update tests/conftest.py

Co-authored-by: Will Holmgren <[email protected]>

Author: williamhobbs

tests/conftest.py

@@ -88,7 +88,7 @@ def assert_frame_equal(left, right, **kwargs):
 def nrel_api_key():
     """Supplies pvlib-python's NREL Developer Network API key.
 
-    Azure Pipelines CI utilizes a secret variable set to NREL_API_KEY
+    pvlib's CI utilizes a secret variable set to NREL_API_KEY
     to mitigate failures associated with using the default key of
     "DEMO_KEY". A user is capable of using their own key this way if
     desired however the default key should suffice for testing purposes.