*/unit*: update NGINX Unit from 1.28.0 to 1.29.0

<ChangeLog>

*) Change: removed $uri auto-append for "share" when loading

configuration.

*) Change: prefer system crypto policy instead of hardcoding a default.

*) Feature: njs support with the basic syntax of JS template literals.

*) Feature: support per-application cgroups on Linux.

*) Feature: the $request_time variable contains the request processing

time.

*) Feature: "prefix" option in Python applications to set WSGI

"SCRIPT_NAME" and ASGI root-path variables.

*) Feature: compatibility with Python 3.11.

*) Feature: compatibility with OpenSSL 3.

*) Feature: compatibility with PHP 8.2.

*) Feature: compatibility with Node.js 19.0.

*) Feature: Ruby Rack v3 support.

*) Bugfix: fix error in connection statistics when using proxy.

*) Bugfix: fix HTTP cookie parsing when the value contains an equals

sign.

*) Bugfix: PHP directory URLs without a trailing '/' would give a 503

error (fixed with a 301 re-direct).

*) Bugfix: missing error checks in the C API.

*) Bugfix: report the regex status in configure summary.

</ChangeLog>