Add workaround for linking against macOS SDK's relocatable dylibs
Hi all,
This MR enables a workaround for the tutorials not being able to run out of the box in macOS. This is because of https://github.com/rust-lang/rust/issues/127100 : Rust won't insert RPATH entries for dependencies, nor allow them to bubble up the needed linker flags.
This workaround is needed on every apex crate that will link against the GStreamer SDK.
See https://github.com/rust-lang/cargo/issues/5077#issuecomment-1284482987