Bundled boinc submodule outdated

[ahorek]

the old version is from 2017 and it can't compile with recent OpenSSL 3 libs, please update the submodule
https://github.com/Milkyway-at-home/boinc-1/tree/496d67ca58a2f8b081dc23fcb22bb3318aab0fdb

thanks!