Update dovecot for SIGKILL and dh.pem denials
Running dovecot on Debian 10 (buster) produced these denials:
type=AVC msg=audit(1601314853.031:9327): apparmor="DENIED"
operation="signal" profile="dovecot" pid=21223 comm="dovecot"
requested_mask="send" denied_mask="send" signal=kill
peer="/usr/lib/dovecot/auth"
type=AVC msg=audit(1601315453.655:9369): apparmor="DENIED"
operation="signal" profile="dovecot" pid=21223 comm="dovecot"
requested_mask="send" denied_mask="send" signal=kill
peer="/usr/lib/dovecot/pop3"
type=AVC msg=audit(1602939754.145:101362): apparmor="DENIED"
operation="signal" profile="dovecot" pid=31632 comm="dovecot"
requested_mask="send" denied_mask="send" signal=kill
peer="/usr/lib/dovecot/pop3-login"
And:
type=AVC msg=audit(1603647096.369:24514): apparmor="DENIED"
operation="open" profile="dovecot" name="/usr/share/dovecot/dh.pem"
pid=28774 comm="doveconf" requested_mask="r" denied_mask="r" fsuid=0
ouid=0
These are fixed in respective comits.