Replace the uses of PjRtClient::Compile() with PjRtClient::CompileAndLoad().

This is to prepare for updating `PjRtClient::Compile()` to return an unloaded executable [1/N]

PiperOrigin-RevId: 737805623

Author: changhuilin

examples/jax_cpp/main.cc

@@ -81,7 +81,7 @@ int main(int argc, char** argv) {
   xla::XlaComputation xla_computation(test_module_proto);
   xla::CompileOptions compile_options;
   std::unique_ptr<xla::PjRtLoadedExecutable> executable =
-      client->Compile(xla_computation, compile_options).value();
+      client->CompileAndLoad(xla_computation, compile_options).value();
 
   // Prepare inputs.
   xla::Literal literal_x =