znc: update to 1.9.0

znc: update to 1.9.0

Update ZNC to 1.9.0 with the following changes:

* drop all patches:
  * 101-Reduce_rebuild_time.patch was only applicable for the old
    autoconf build, which was dropped in 1.9 and we didn't use anymore
    anyway
  * 104-disable-empty-modules-check.patch not needed anymore since ZNC
    now requires the new corecaps module on startup
  * 120-openssl-deprecated.patch was applied upstream
* disable libargon2 support explicitly to avoid non-deterministic builds
  if it gets added
* package new module corecaps with znc base, as this is a required
  module
* reorder CMAKE_OPTIONS alphabetically

No new modules were introduced or removed besides the new corecaps
module.

Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>