treewide: rebuild against python 3.9 (MR 2104)

Rebuild packages that linked against libpython3.8.so or installed files
to /usr/lib/python3.8/.

Related: https://wiki.postmarketos.org/wiki/Upstream_compatibility_with_Alpine

kde/audiotube/APKBUILD

 # Maintainer:
 pkgname=audiotube
 pkgver=0_git20210327
-pkgrel=0
+pkgrel=1
 _commit="8fa564e7f0e04d0b68bda977adcf31536bba1fb5"
 pkgdesc="Client for YouTube Music"
 url="https://invent.kde.org/jbbgameich/audiotube"

kde/mygnuhealth/APKBUILD

@@ -2,7 +2,7 @@
 pkgname=mygnuhealth
 pkgver=0_git20210403
 _commit="5c4d774615b27d0e9752550116e463a45932713f"
-pkgrel=0
+pkgrel=1
 pkgdesc="The GNU Health Personal Health Record (PHR)"
 url="https://invent.kde.org/pim/mygnuhealth"
 arch="noarch !armhf !mips !mips64" # blocked by py3-pyside2

main/bootchart2/APKBUILD

 # Maintainer: Pops Dylan <popsdylan@protonmail.com>
 pkgname=bootchart2
-pkgver="0.14.8_git20170531"
-pkgrel=0
+pkgver=0.14.8_git20170531
+pkgrel=1
 pkgdesc="Boot Process Performance Visualization"
 url="https://github.com/xrmx/bootchart"
 arch="all"

main/gpodder-adaptive/APKBUILD

@@ -2,7 +2,7 @@
 pkgname=gpodder-adaptive
 pkgver=3.10.17_git20210220
 _commit=d7bcf105adeddb96e8f16900f4880290080a3c04
-pkgrel=1
+pkgrel=2
 pkgdesc="Podcast aggregator"
 url="https://github.com/gpodder/gpodder/tree/adaptive"
 arch="noarch"

main/hwtest/APKBUILD

 # Maintainer: Martijn Braam <martijn@brixit.nl>
 pkgname=hwtest
 pkgver=0.6.0
-pkgrel=2
+pkgrel=3
 pkgdesc="Small utility to check hardware functionality on phones"
 url="https://gitlab.com/MartijnBraam/hwtest"
 arch="noarch"

main/ofonoctl/APKBUILD

 # Maintainer: Martijn Braam <martijn@brixit.nl>
 pkgname=ofonoctl
 pkgver=0.4.1
-pkgrel=0
+pkgrel=1
 pkgdesc="test/control application for the ofono daemon"
 url="https://git.sr.ht/~martijnbraam/ofonoctl"
 arch="noarch"

main/powersupply/APKBUILD

 # Maintainer: Martijn Braam <martijn@brixit.nl>
 pkgname=powersupply
 pkgver=0.4.0
-pkgrel=0
+pkgrel=1
 pkgdesc="GTK3 tool for displaying battery and power info"
 url="https://gitlab.com/MartijnBraam/powersupply"
 arch="noarch"