copy custom op lib to testdata dir

Author: tianleiwu

csharp/src/Microsoft.ML.OnnxRuntime/NativeMethods.shared.cs

@@ -930,7 +930,7 @@ private static IntPtr DllImportResolver(string libraryName, Assembly assembly, D
                         string assemblyDir = System.IO.Path.GetDirectoryName(assemblyLocation);
                         string rid = RuntimeInformation.RuntimeIdentifier;
 
-                        string[] ridsToTry = { rid, "osx-arm64", "osx", "linux-x64", "linux-arm64", "linux" };
+                        string[] ridsToTry = { rid, "osx-arm64", "osx-aarch64", "osx", "linux-x64", "linux-arm64", "linux" };
                         foreach (var tryRid in ridsToTry)
                         {
                             string probePath = System.IO.Path.Combine(assemblyDir, "runtimes", tryRid, "native", mappedName);

tools/ci_build/github/azure-pipelines/templates/mac-cpu-packaging-steps.yml

@@ -29,6 +29,9 @@ steps:
 - bash: |
     mkdir -p $(Build.BinariesDirectory)/onnxruntime-osx-${{ parameters.MacosArch }}-$(OnnxRuntimeVersion)/testdata
     cp $(Build.BinariesDirectory)/Release/libcustom_op_library.dylib $(Build.BinariesDirectory)/onnxruntime-osx-${{ parameters.MacosArch }}-$(OnnxRuntimeVersion)/testdata/libcustom_op_library.dylib
+    # Copy to testdata/testdata so EndToEndTests can find it when running in Debug configuration
+    mkdir -p $(Build.BinariesDirectory)/testdata/testdata
+    cp $(Build.BinariesDirectory)/Release/libcustom_op_library.dylib $(Build.BinariesDirectory)/testdata/testdata/libcustom_op_library.dylib
   displayName: 'Copy custom op library'
   condition: succeeded()