boost: Updates package to version 1.85.0

boost: Updates package to version 1.85.0

This commit updates boost to version 1.85.0

New available libraries:
* *Charconv:* A high quality implementation of <charconv> in C++11,
  from Matt Borland. [2]
* *Scope:* A collection of scope guard utilities and a
  unique_resource wrapper, from Andrey Semashev. [3]

More info about Boost 1.85.0 can be found at the usual place [1].

[1]: https://www.boost.org/users/history/version_1_85_0.html
[2]: https://www.boost.org/libs/charconv/
[3]: https://www.boost.org/libs/scope/

Signed-off-by: Carlos Miguel Ferreira <carlosmf.pt@gmail.com>