AWS-LC is an OpenSSL derivative which can be used with the openssl plugin. This adds a CI job that resembles the openssl-3 test case. It downloads the source tarball for an AWS-LC release, builds that source using CMake/Ninja, and then builds/tests strongSwan using the same technique used by openssl-3. References strongswan/strongswan#1907 Closes strongswan/strongswan#2151