fix: add runTest method due to pytest bug

This is due to a but in pytest. See pytest-dev/pytest#12263

Author: alvarolopez

deepaas/tests/base.py

@@ -74,3 +74,7 @@ def flags(self, **kw):
         group = kw.pop("group", None)
         for k, v in kw.items():
             CONF.set_override(k, v, group)
+
+    def runTest(self):
+        """This is due to https://github.com/pytest-dev/pytest/issues/12263"""
+        pass