15348: Fix packaging bug that was ignoring fpm-info.sh for Go progs.

15348: Fix packaging bug that was ignoring fpm-info.sh for Go progs.

Until now, the libpam-arvados-go dependency on ca-certificates and the
keep-web dependency on mailcap/mime-support were listed correctly in
fpm-info.sh, but they weren't expressed in the packages because
run-library.sh was looking for fpm-info.sh in the wrong place.

Arvados-DCO-1.1-Signed-off-by: Tom Clegg <tom@tomclegg.ca>