procd: support 'requirejail' attribute

procd: support 'requirejail' attribute

Bump procd package to reduce log spam related to missing jail binaries
in a non-jail capable system.

bcb8655 instance: add 'requirejail' attribute

An additional jail attribute 'requirejail' can now be used to indicate
mandatory use of a jailed environment and hence prevent process startup
in the event that the jail subsystem is unavailable.

Procd will now only log errors if jail is unavailable and 1) is a mandatory
requirement or 2) a procd debug level of at least 2 is in use.

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>