component/jupyter-py2: rename into jupyter-erp5

This is not really specific to python2, it is specific to ERP5, now that
ERP5 uses python3, the naming became not really good

stack/erp5-zope2/buildout.cfg

@@ -55,7 +55,7 @@ extends =
   ../../component/pylint/buildout.cfg
   ../../component/perl-Image-ExifTool/buildout.cfg
   ../../component/wendelin.core/buildout.cfg
-  ../../component/jupyter-py2/buildout.cfg
+  ../../component/jupyter-erp5/buildout.cfg
   ../../component/pygolang/buildout.cfg
   ../../component/bcrypt/buildout.cfg
   ../../component/python-pynacl/buildout.cfg

stack/erp5/buildout.cfg

@@ -58,7 +58,7 @@ extends =
   ../../component/pylint/buildout.cfg
   ../../component/perl-Image-ExifTool/buildout.cfg
   ../../component/wendelin.core/buildout.cfg
-  ../../component/jupyter-py2/buildout.cfg
+  ../../component/jupyter-erp5/buildout.cfg
   ../../component/pygolang/buildout.cfg
   ../../component/bcrypt/buildout.cfg
   ../../component/python-pynacl/buildout.cfg