Ignore 3.12 warning on utcnow in nipype

Author: yarikoptic

tox.ini

@@ -42,6 +42,8 @@ filterwarnings =
     ignore:.*pkg_resources:DeprecationWarning
     # <https://github.com/nipy/nipype/issues/3563>
     ignore:.*Use setlocale.* instead:DeprecationWarning:nipype
+    # <https://github.com/nipy/nipype/pull/3670>
+    ignore:.*datetime.datetime.utcnow\(\) is deprecated.*:DeprecationWarning:nipype
 
 [coverage:run]
 include = heudiconv/*