update vm patch file for inspect api to have the correct type

Bug:#42676
Change-Id: I975925df39b35af1fe53698026d2a2e84077ddaf
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/154260
Reviewed-by: Siva Annamalai <asiva@google.com>
Commit-Queue: Siva Annamalai <asiva@google.com>
Auto-Submit: Jake Macdonald <jakemac@google.com>

sdk/lib/_internal/vm/lib/developer.dart

@@ -21,7 +21,7 @@ import "dart:isolate" show SendPort;
 bool debugger({bool when: true, String? message}) native "Developer_debugger";
 
 @patch
-Object inspect(Object object) native "Developer_inspect";
+Object? inspect(Object? object) native "Developer_inspect";
 
 @patch
 void log(String message,