Temporarily disable auto-pause with graalvm images

[itzg]

Due to build-time issue with tar:

#36 202.9 tar: bin/knock: Cannot open: Invalid argument
#36 202.9 tar: etc/knockd.conf: Cannot open: Invalid argument
#36 202.9 tar: sbin/knockd: Cannot open: Invalid argument
#36 202.9 tar: sbin/knock_helper_ipt.sh: Cannot open: Invalid argument
#36 202.9 tar: share/man: Cannot mkdir: Invalid argument
#36 202.9 tar: share/man/man1: Cannot mkdir: Invalid argument
#36 202.9 tar: share/man/man1/knock.1: Cannot open: Invalid argument
#36 202.9 tar: share/man/man1/knockd.1: Cannot open: Invalid argument
#36 202.9 tar: share/doc: Cannot mkdir: Invalid argument
#36 202.9 tar: share/doc/knock: Cannot mkdir: Invalid argument
#36 202.9 tar: share/doc/knock/COPYING: Cannot open: Invalid argument
#36 202.9 tar: share/doc/knock/ChangeLog: Cannot open: Invalid argument
#36 202.9 tar: share/doc/knock/TODO: Cannot open: Invalid argument
#36 202.9 tar: share/doc/knock/README.md: Cannot open: Invalid argument
#36 202.9 tar: Exiting with failure status due to previous errors