fix(docs): use pip to build the readthedocs (#3225)

Co-authored-by: Gabriele N. Tornetta <[email protected]>
Co-authored-by: Tahir H. Butt <[email protected]>

Author: 3 people

.readthedocs.yml

@@ -9,5 +9,5 @@ python:
   version: 3.8
   install:
     - requirements: docs/requirements.txt
-    - method: setuptools
+    - method: pip
       path: .