meta.sr.ht: drop py3-pystache

todo.sr.ht: upgrade to 0.64.13

paste.sr.ht: upgrade to 0.12.1

pages.sr.ht: upgrade to 0.4.4

meta.sr.ht: upgrade to 0.53.15

man.sr.ht: upgrade to 0.15.12

lists.sr.ht: upgrade to 0.48.19

legacy.sr.ht-shim: bump pkgrel

hub.sr.ht: upgrade to 0.13.1

hg.sr.ht: upgrade to 0.27.4

git.sr.ht: upgrade to 0.72.22

py3-scmsrht: upgrade to 0.22.9

dispatch.sr.ht: upgrade to 0.15.8

builds.sr.ht: upgrade to 0.66.4

py3-srht: upgrade to 0.67.0

py3-arrow: remove; now in alpine community

py3-weasyprint: python 3.9 fixes

py3-vine: "fix" test suite

py3-unidiff: fix tests

py3-pgpy: add wheel dependency