Fix paths for dylibs for Apple platforms

Embedded paths in dylibs are absolute paths of
where they were built. This makes it so that on CI
it embeds the full CI path of artefacts which is then
traversed and the binary is not found when linking.

To fix that `install_name_tool` must be used

Signed-off-by: Lukas Pukenis <[email protected]>

rust_build_utils/darwin_build_utils.py

@@ -185,17 +185,16 @@ def create_xcframework(
         command = ["xcodebuild", "-create-xcframework"]
 
         for target_os in target_os_list:
-            command.extend(
-                [
-                    "-library",
-                    str(
-                        get_universal_library_distribution_directory(
-                            project, target_os, debug
-                        )
-                        / library_file_name
-                    ),
-                ]
+            lib_path = str(
+                get_universal_library_distribution_directory(project, target_os, debug)
+                / library_file_name
             )
+
+            # fix @rpath
+            subprocess.run(
+                ["install_name_tool", "-id", f"@rpath/{library_file_name}", lib_path]
+            )
+            command.extend(["-library", lib_path])
             command.extend(["-headers", str(temp_headers)])
 
         command.extend(["-output", str(framework_path)])