[3.9] Upgrade bundled pip and setuptools (GH-27625) (GH-27658)

pip is now 21.2.3
setuptools is now 57.4.0.
(cherry picked from commit 738ac00)

Co-authored-by: Tzu-ping Chung <[email protected]>

Author: uranusjr

Lib/ensurepip/__init__.py

@@ -13,9 +13,9 @@
 __all__ = ["version", "bootstrap"]
 
 
-_SETUPTOOLS_VERSION = "56.0.0"
+_SETUPTOOLS_VERSION = "57.4.0"
 
-_PIP_VERSION = "21.1.3"
+_PIP_VERSION = "21.2.3"
 
 _PROJECTS = [
     ("setuptools", _SETUPTOOLS_VERSION, "py3"),

Lib/ensurepip/_bundled/pip-21.1.3-py3-none-any.whl

@@ -0,0 +1 @@
+Upgrade bundled pip to 21.2.3 and setuptools to 57.4.0