fix: limit pytest < 6.0.0

Author: satra

setup.cfg

@@ -5,7 +5,7 @@ author_email = [email protected]
 maintainer = Nipype developers
 maintainer_email = [email protected]
 description = Pydra dataflow engine
-long_description = file:long_description.rst
+long_description = file:README.rst
 long_description_content_type = text/x-rst; charset=UTF-8
 license = Apache License, 2.0
 provides =
@@ -30,7 +30,7 @@ install_requires =
     etelemetry >= 0.2.2
 
 test_requires =
-    pytest >= 4.4.0
+    pytest >= 4.4.0, < 6.0.0
     pytest-cov
     pytest-env
     pytest-xdist
@@ -62,7 +62,7 @@ doc =
 docs =
     %(doc)s
 test =
-    pytest >= 4.4.0
+    pytest >= 4.4.0, < 6.0.0
     pytest-cov
     pytest-env
     pytest-xdist