Release systemd version 247.3-6+apertis1

Signed-off-by: Ariel D'Alessandro <ariel.dalessandro@collabora.com>

debian/changelog

+systemd (247.3-6+apertis1) apertis; urgency=medium
+
+  * Merge from Debian Bullseye. Remaining changes:
+    * Fix bashisms in various scripts
+    * Add systemd-boot package
+    * AppArmor: Add systemd-logind profile
+    * Don’t build against libdw, since 0.158 isn’t available in target.
+    * Add /usr to non-unmountable list.
+    * Fix debian/control syntax.
+    * Switch to OpenSSL, drop systemd-journal-remote and its dependency on
+      libmicrohttpd-dev
+    * Fix syntax in kernel-install.
+    * Remove bashisms from the entry directory plugin
+    * Fix bashisms in kernel-install scripts.
+    * kernel-install: allow to create $BOOT/$MACHINE_ID.
+    * Fix kernel-install call from update-initramfs.
+    * 85-initrd: fix the args number
+    * Refresh patch for UEFI entries generator.
+    * Fix the path to bootable binaries in efi entry.
+    * Fix access to run/systemd/notify for systemd-logind in apparmor rule
+
+ -- Ariel D'Alessandro <ariel.dalessandro@collabora.com>  Mon, 16 Aug 2021 21:15:04 -0300
+
 systemd (247.3-6) unstable; urgency=high
 
   * Non-maintainer upload (acked by maintainers)