Manual engine roll to update format of compileExpression RPC response (flutter#59717)

Author: bkonyi

bin/internal/engine.version

@@ -1 +1 @@
-965fbbed1776545ee681cb57f3fb1d0c2000bbcb
+a5a0a6014ab3c84e67e1a6d8bca97e0b02fbdd00

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');