Update pip to 21.3.1, distlib to 0.3.3

[mkoeppe]

https://pip.pypa.io/en/stable/news/ 21.3.1 (2021-10-22)

• In-tree builds are now the default. --use-feature=in-tree-build is now ignored.

https://distlib.readthedocs.io/en/stable/overview.html#id1

• fix for Python 3.10

Related updates (https://repology.org/projects/?inrepo=sagemath_develop&outdated=True):

• certifi
• pyzmq: Fix build errors; zeromq, pyzmq: Update; setuptools: upgrade to 59.2.0 #32828: setuptools
• tox
• virtualenv
• flit_core: Update to 3.4.0; setuptools_scm: Update to 6.3.2 #32707: flit-core 3.4.0, setuptools-scm

Depends on #32751

CC: @orlitzky

Component: packages: standard

Author: Matthias Koeppe

Branch/Commit: 760ff09

Reviewer: Michael Orlitzky

Issue created by migration from https://trac.sagemath.org/ticket/32671

[mkoeppe]

Branch: u/mkoeppe/update_pip_to_21_3_1

[mkoeppe]

Commit: f1f4759

[mkoeppe]

New commits:

d3a6fc3	build/pkgs/pip: Update to 21.3.1
5b001a2	build/bin/sage-dist-helpers: Remove '--use-feature=in-tree-build' (default since pip 21.3)
f1f4759	build/pkgs/distlib: Update to 0.3.3

[mkoeppe]

Author: Matthias Koeppe

[mkoeppe]

Dependencies: #32751

[sagetrac-git]

Changed commit from f1f4759 to 760ff09

[sagetrac-git]

Branch pushed to git repo; I updated commit sha1. New commits:

cc00d8c	Merge #32659
516bdb3	build/bin/sage-dist-helpers (sdh_pip_install): Handle new option --build-isolation
e89e278	build/pkgs/packaging: Use --build-isolation
fd91cb6	build/bin/sage-dist-helpers (sdh_pip_install): Pass options on to sdh_store_and_pip_install_wheel
8f3bd8f	build/bin/sage-dist-helpers: Only extract special ooptions --build-isolation and --no-deps from the front, pass --no-deps only to install
760ff09	Merge #32751

[orlitzky]

Reviewer: Michael Orlitzky

[mkoeppe]

comment:11

Thanks!

[vbraun]

Changed branch from u/mkoeppe/update_pip_to_21_3_1 to 760ff09