bq-paella: update maintainers (MR 3200)

Jonathan hasn't been active on GitLab since more than a year, so remove
them from the maintainer list for this device.

device/community/device-bq-paella/APKBUILD

 # Reference: <https://postmarketos.org/devicepkg>
-# Maintainer: Jonathan Albrieux <jonathan.albrieux@gmail.com>
-# Co-Maintainer: Minecrell <minecrell@minecrell.net>
+# Maintainer: Minecrell <minecrell@minecrell.net>
 pkgname=device-bq-paella
 pkgdesc="BQ Aquaris X5"
 pkgver=6
-pkgrel=2
+pkgrel=3
 url="https://postmarketos.org"
 license="MIT"
 arch="aarch64"