samsung-j6primelte: fix broken brightness script and update maintainer email (MR 2977)

[ci:skip-build] builds locally and already built fine on CI in MR

device/testing/device-samsung-j6primelte/APKBUILD

 # Reference: <https://postmarketos.org/devicepkg>
-# Maintainer: omame <me@omame.tech>
+# Maintainer: omame <me@omame.xyz>
 pkgname=device-samsung-j6primelte
 pkgdesc="Samsung Galaxy J6+"
-pkgver=0.4
-pkgrel=1
+pkgver=0.5
+pkgrel=0
 url="https://postmarketos.org"
 license="MIT"
 arch="armv7"
@@ -18,7 +18,7 @@ depends="
 makedepends="devicepkg-dev"
 source="
 	deviceinfo
-	brightness
+	brightness.start
 "
 subpackages="$pkgname-nonfree-firmware:nonfree_firmware"
 
@@ -28,7 +28,7 @@ build() {
 
 package() {
 	devicepkg_package $startdir $pkgname
-	install -Dm755 "$srcdir"/brightness "$pkgdir"/etc/local.d/brightness
+	install -Dm755 "$srcdir"/brightness.start -t "$pkgdir"/etc/local.d
 }
 
 nonfree_firmware() {
@@ -39,5 +39,5 @@ nonfree_firmware() {
 
 sha512sums="
 2b66b119564ed469927d7f41e6abf3fb20c99c8a022da9478b0ece1ecbf50a9527925d8c2b87a91fc2b9575741b295bd4dfb0057e3ce41c231b2f0fd82da0bd9  deviceinfo
-85582c47239d5f9cd899f3f6ed9df860e3b44a8855e13a7bc37777b22111f0511cd371a344fb52eb77cb5d1b1989661b07ea1ee6916f425643d13e4ca5261894  brightness
+7456a61514aabc557c77acacbac18cf167d0f675470cd6529f62c35fc0e1278ef3ca497f48ded813627e86e383664fa15ac124c45dd5c8558c746aee73e5fc10  brightness.start
 "

device/testing/device-samsung-j6primelte/brightness

-#!/bin/bash
-echo /sys/class/leds/lcd-backlight/max_brightness > /sys/class/leds/lcd-backlight/brightness

device/testing/device-samsung-j6primelte/brightness.start

+#!/bin/sh
+cat /sys/class/leds/lcd-backlight/max_brightness > /sys/class/leds/lcd-backlight/brightness

device/testing/firmware-samsung-j6primelte/APKBUILD

-# Maintainer: omame <me@omame.tech>
+# Maintainer: omame <me@omame.xyz>
 pkgname=firmware-samsung-j6primelte
 pkgver=0.1
-pkgrel=0
+pkgrel=1
 pkgdesc="Firmware for the Samsung Galaxy J6+ (j6primelte)"
 _repository="pmos-j6primelte-firmware-blobs"
 url="https://github.com/omaemae/$_repository"

device/testing/linux-samsung-j6primelte/APKBUILD

 # Reference: <https://postmarketos.org/vendorkernel>
-# Maintainer: omame <me@omame.tech>
+# Maintainer: omame <me@omame.xyz>
 pkgname=linux-samsung-j6primelte
 pkgver=3.18.124
-pkgrel=1
+pkgrel=2
 pkgdesc="Samsung Galaxy J6+ kernel (LineageOS 18.1)"
 arch="armv7"
 _carch="arm"