treewide: remove inactive maintainers (MR 3820)

Remove maintainers who could not be reached to test v22.12. Add exkc as
maintainer for firmware-pine64-rockpro64 as discussed in review of this
patch.

[ci:skip-build]: already built successfully in CI

device/community/device-motorola-harpia/APKBUILD

@@ -1,10 +1,9 @@
 # Reference: <https://postmarketos.org/devicepkg>
-# Maintainer: Ruby Iris Juric <ruby@srxl.me>
-# Co-Maintainer: Minecrell <minecrell@minecrell.net>
+# Maintainer: Minecrell <minecrell@minecrell.net>
 pkgname=device-motorola-harpia
 pkgdesc="Motorola Moto G4 Play"
 pkgver=7
-pkgrel=1
+pkgrel=2
 url="https://postmarketos.org"
 license="MIT"
 arch="aarch64"

device/community/device-pine64-rockpro64/APKBUILD

@@ -1,9 +1,8 @@
 # Reference: <https://postmarketos.org/devicepkg>
-# Maintainer: Jean Lucas <jean@4ray.co>
-# Co-Maintainer: Bart Ribbers <bribbers@disroot.org>
+# Maintainer: Bart Ribbers <bribbers@disroot.org>
 pkgname=device-pine64-rockpro64
 pkgver=3
-pkgrel=1
+pkgrel=2
 pkgdesc="PINE64 ROCKPro64"
 url="https://postmarketos.org"
 license="MIT"

device/community/firmware-motorola-harpia/APKBUILD

@@ -1,7 +1,6 @@
-# Maintainer: Ruby Iris Juric <ruby@srxl.me>
 pkgname=firmware-motorola-harpia
 pkgver=3
-pkgrel=0
+pkgrel=1
 pkgdesc="Firmware for Motorola Moto G4 Play"
 url="https://github.com/Sorixelle/vendor_motorola_harpia"
 subpackages="$pkgname-wcnss-nv:wcnss_nv $pkgname-venus"

device/community/firmware-pine64-rockpro64/APKBUILD

@@ -1,7 +1,7 @@
-# Maintainer: Jean Lucas <jean@4ray.co>
+# Maintainer: @exkc <exkc@exkc.moe>
 pkgname=firmware-pine64-rockpro64
 pkgver=1
-pkgrel=0
+pkgrel=1
 _commit="4b370cd415a2dd7b0ecdbe8bbf1d86fb35ce6985"
 pkgdesc="Firmware for the RockPro64 (pine64-rockpro64)"
 url="https://github.com/LibreELEC/brcmfmac_sdio-firmware"