fix(void): carry python3-pysocks and constrain the audio and SOCKS floors

Void's stock python3-PyAudio (0.2.12_5) and python3-pysocks (1.7.0_8) sit
below the project floors (pyaudio>=0.2.13, PySocks>=1.7.1). voculinux
depended on both by bare name, which an installed stock package already
satisfies, so a user who had the stock packages was never upgraded.

- add packaging/void/srcpkgs/python3-pysocks: PySocks 1.7.1 from the PyPI
  sdist that uv.lock pins (sha256 3f8804571ebe159c380ac6de37643bb4685970655d3bba243530d6558b799aa0)
- voculinux depends on python3-PyAudio>=0.2.14_1 and python3-pysocks>=1.7.1_1
- the install smoke installs the stock packages first, then voculinux, and
  fails unless each reads back as its carried pkgver
- tests: each constraint must name its carried template's current version
  and revision; the stock version must sit below the floor; the depends
  parser refuses malformed tokens instead of stripping them
- docs: "Version floors" in packaging/void/README.md; a pointer in
  docs/RELEASE_PROCESS.md

Refs #16

packaging/void/srcpkgs/python3-pysocks/template

@@ -0,0 +1,20 @@
+# Template file for 'python3-pysocks'
+# Carried for the personal repository: Void's python3-pysocks is 1.7.0, below
+# the project floor PySocks>=1.7.1 (pyproject.toml). The version and checksum
+# are the PyPI sdist that uv.lock pins. See packaging/void/README.md.
+pkgname=python3-pysocks
+version=1.7.1
+revision=1
+build_style=python3-module
+hostmakedepends="python3-setuptools"
+depends="python3"
+short_desc="Python3 SOCKS client module"
+maintainer="Orphaned <orphan@voidlinux.org>"
+license="BSD-3-Clause"
+homepage="https://github.com/Anorov/PySocks"
+distfiles="${PYPI_SITE}/P/PySocks/PySocks-${version}.tar.gz"
+checksum=3f8804571ebe159c380ac6de37643bb4685970655d3bba243530d6558b799aa0
+
+post_install() {
+	vlicense LICENSE
+}