procd: update to git HEAD

procd: update to git HEAD

Fix build on glibc targets and address a bunch of compiler warnings.

 93fc089 jail: cgroups-bpf: don't use sys/reg.h when building with glibc
 548d057 jail: don't ignore return value of seteuid()
 220b716 jail: ignore return value when creating default /dev symlinks
 78d5baa hotplug-dispatch: don't ignore asprintf() return value
 736aee5 uxc: always handle asprintf() return value
 2b20456 hotplug-dispatch: replace wrongly used assert()
 bfc86a2 jail: cgroups: replace wrongly used assert()
 516bdf2 jail: don't ignore return value of write()

Signed-off-by: Daniel Golle <daniel@makrotopia.org>