landry a075ac47be Bump requirement to nss 3.53.
Technically, requirement is at 3.52 (#1629594) and later on 3.52.1
(#1637369) but this cant harm.

while here, remove --with-system-bz2 from CONFIGURE_ARGS, the dependency
on bzip2 was removed in #1418425 for firefox 62..
2020-06-02 15:22:18 +00:00
..
2020-06-02 15:22:18 +00:00