[3.8] bpo-43930: Update bundled pip to 21.1 and setuptools to 56.0.0 (GH-25576) (GH-25579)

Update bundled pip to 21.1 and setuptools to 56.0.0.
(cherry picked from commit 1969835)

Co-authored-by: Stéphane Bidoul <[email protected]>

Author: sbidoul

Lib/ensurepip/__init__.py

@@ -9,14 +9,13 @@
 
 __all__ = ["version", "bootstrap"]
 
+_SETUPTOOLS_VERSION = "56.0.0"
 
-_SETUPTOOLS_VERSION = "49.2.1"
-
-_PIP_VERSION = "20.2.3"
+_PIP_VERSION = "21.1"
 
 _PROJECTS = [
     ("setuptools", _SETUPTOOLS_VERSION, "py3"),
-    ("pip", _PIP_VERSION, "py2.py3"),
+    ("pip", _PIP_VERSION, "py3"),
 ]
 
 

Lib/ensurepip/_bundled/pip-20.2.3-py2.py3-none-any.whl renamed to Lib/ensurepip/_bundled/pip-21.1-py3-none-any.whl

@@ -0,0 +1 @@
+Update bundled pip to 21.1 and setuptools to 56.0.0