*/*: update NGINX JavaScript: 0.8.10 -> 0.9.0 (+)

The patches applied to the www/unit are based on
https://github.com/nginx/unit/pull/1611/

Thanks to: Andrew Clayton <a.clayton@nginx.com>

<ChangeLog>

Core:

*) Feature: refactored working with built-in strings, symbols

and small integers.
Performance improvements (arewefastyet/benchmarks/v8-v7 benchmark):
Richards: +57% (631 → 989)
Crypto: +7% (1445 → 1551)
RayTrace: +37% (562 → 772)
NavierStokes: +20% (2062 → 2465)
Overall score: +29% (1014 → 1307)

*) Bugfix: fixed regexp undefined value of captured group.

*) Bugfix: fixed GCC 15 build with -Wunterminated-string-initialization.

</ChangeLog>