[xmlsec] New xmlsec 1.2.35 release

[Aleksey Sanin]

The XML Security Library 1.2.35 release includes the following changes:

* Migration to OpenSSL 3.0 API (based on PR by @snargit). Note that
OpenSSL engines are disabled by default when XMLSec library is compiled
against OpenSSL 3.0. To re-enable OpenSSL engines, use
"--enableopenssl3-engines" configure flag (there will be a lot of
deprecation warnings).

* The OpenSSL before 1.1.0 and LibreSSL before 2.7.0 are now deprecated
and will be removed in the future versions of XMLSec Library.

* Refactored all the integer casts to ensure cast-safety. Fixed all
warnings and enabled "-Werror" and "-pedantic" flags on CI builds.

* Added configure flag to use size_t for xmlSecSize (currently disabled
by default for backward compatibility).

* Moved all CI builds to GitHub actions.

* Several other small fixes.

Thanks to everyone who contributed patches and filed bugs!

Download the new release in the usual place:

https://www.aleksey.com/xmlsec/download.html




Best,

Aleksey