Log message:
python/wheel.mk: simplify a lot, and switch to 'installer' for installation

This follows the recommended bootstrap method (flit_core, build, installer).

However, installer installs different files than pip, so update PLISTs
for all packages using wheel.mk and bump their PKGREVISIONs.

Log message:
py-looseversion: update to 1.3.0

### 1.3.0 (5 Jul 2023)

- 2023.07.05
  - Restore Python 3 semantics for `LooseVersion`, creating `LooseVersion2`
    to restore Python 2 semantics.

Log message:
py-looseversion: update to 1.2.0

### 1.2.0 (25 May 2023)

- 2023.05.25
  - Test on Python 3.12
  - Enable installation on Python 2+
  - Ensure consistent semantics between Python 2 and 3

Log message:
py-looseversion: update to 1.1.2

### 1.1.2 (22 Feb 2023)

- 2023.02.22
  - Revert unintended change in internal version representation

### 1.1.1 (19 Feb 2023)

- 2023.02.19
  - Restructure package so stubs get installed and detected

### 1.1.0 (19 Feb 2023)

- 2023.02.19
  - Add type annotations and stubs.

Log message:
py-looseversion: add version 1.0.3

A backwards/forwards-compatible fork of `distutils.version.LooseVersion`,
for times when PEP-440 isn't what you need.

The goal of this package is to be a drop-in replacement for the original
`LooseVersion`. It implements an identical interface and comparison logic to
`LooseVersion`. The only major change is that a `looseversion.LooseVersion` is
comparable to a `distutils.version.LooseVersion`, which means tools should not
need to worry whether all dependencies that use LooseVersion have migrated.

If you are simply comparing versions of Python packages, consider moving to
`packaging.version.Version', which follows PEP-440. `LooseVersion` is better
suited to interacting with heterogeneous version schemes that do not follow
PEP-440.