www/freenginx-devel: update njs 0.9.3 -> 0.9.4 (+)

Sponsored by: tipi.work

<ChangeLog>

nginx modules:

*) Feature: added HTTP forward proxy support for ngx.fetch() API.

Core:

*) Bugfix: fixed r.subrequest() to a location with JS handler

for QuickJS. The bug became visible after
bellard/quickjs@42eb2795.

</ChangeLog>