python3-gevent: Upgrade 1.4.0 -> 20.6.2

Upgrade to release 20.6.2:

- It is now possible to build and use the embedded libuv on a
  Cygwin platform.
- Bug fix: relax the version constraint for psutil on PyPy.
- The include directories used to compile the C extensions have
  been tweaked with the intent of making it easier to use older
  debug versions of Python.

Signed-off-by: Leon Anavi <leon.anavi@konsulko.com>
Acked-by: Trevor Gamblin <trevor.gamblin@windriver.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-python/recipes-devtools/python/python-gevent/0002-setup.py-do-not-query-for-include-dir.patch

@@ -1,26 +0,0 @@
-From a53ed6b2f967a5f95e69d51cad3f8c120d7df65b Mon Sep 17 00:00:00 2001
-From: Alexander Kanavin <alex.kanavin@gmail.com>
-Date: Thu, 7 Feb 2019 15:21:15 +0100
-Subject: [PATCH] setup.py: do not query for include dir
-
-As this will return the native python directory erroneously.
-
-Upstream-Status: Inappropriate [oe-core specific]
-Signed-off-by: Alexander Kanavin <alex.kanavin@gmail.com>
----
- setup.py | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/setup.py b/setup.py
-index 86d6c5a..5d22291 100755
---- a/setup.py
-+++ b/setup.py
-@@ -52,7 +52,7 @@ from _setupares import ARES
- # Get access to the greenlet header file.
- # The sysconfig dir is not enough if we're in a virtualenv
- # See https://github.com/pypa/pip/issues/4610
--include_dirs = [sysconfig.get_path("include")]
-+include_dirs = []
- venv_include_dir = os.path.join(sys.prefix, 'include', 'site',
-                                 'python' + sysconfig.get_python_version())
- venv_include_dir = os.path.abspath(venv_include_dir)