* Make aws-sdk-cpp rpath relocatable (fix#14544)
This is important since vcpkg offers binary caching which could be
shared between different machines (as long as both machines use the same
"toolchains" [more technically, as long as the vcpkg hash is the same])
* Allow cross-compilation
* Update port version
Co-authored-by: Kevin Lalumiere <klalumiere@coveo.com>
