Circumvent pyvda OS version check in CICD env

Author: Crozzers

test/conftest.py

@@ -32,6 +32,9 @@
 if os.getenv('GITHUB_ACTIONS') == 'true':
 
     def pytest_sessionstart():
+        # see https://github.com/mrob95/pyvda/blob/e66b41b2b11a4016fcc346c793484575038500f5/pyvda/__init__.py#L54
+        os.environ['READTHEDOCS'] = '1'
+
         shutil.copyfile(__pyvda_utils, __pyvda_utils.parent / 'utils-old.py')
 
         with open(__pyvda_utils, 'r') as f: