Roll the engine from 965fbbe to b5f5e63 (#59804)

This rolls the engine from:
965fbbed1776545ee681cb57f3fb1d0c2000bbcb to
b5f5e6332cb4987e9e38ffaa267733ec0a8705ba. A Dart SDK roll in this range
changed the format of the compileExpression RPC VMService endpoint,
necessitating a tool patch.

bin/internal/engine.version

@@ -1 +1 @@
-965fbbed1776545ee681cb57f3fb1d0c2000bbcb
+b5f5e6332cb4987e9e38ffaa267733ec0a8705ba

dev/devicelab/lib/tasks/new_gallery.dart

@@ -19,7 +19,7 @@ class NewGalleryPerfTest extends PerfTest {
     // Manually roll the new gallery version for now. If the new gallery repo
     // turns out to be updated frequently in the future, we can set up an auto
     // roller to update this version.
-    await getNewGallery('62e633b9e9360ee57dafaaeabbb7fbf85e7642d1', galleryDir);
+    await getNewGallery('8cd83418728531067a1768eccd10b1d197d61d15', galleryDir);
     return await super.run();
   }
 

packages/flutter_tools/lib/src/vmservice.dart

@@ -266,9 +266,7 @@ vm_service.VmService setUpVmService(
           isStatic);
       return <String, dynamic>{
         'type': 'Success',
-        'result': <String, dynamic>{
-          'result': <String, dynamic>{'kernelBytes': kernelBytesBase64},
-        },
+        'result': <String, dynamic>{'kernelBytes': kernelBytesBase64},
       };
     });
     vmService.registerService('compileExpression', 'Flutter Tools');