ServerlessCache for memecache fail because of memcache not support Platform Version 8

[clouddev-code]

Describe the bug

ServerlessCache for memecache fail because of memcache not support Platform Version 8

To Reproduce

The following minimal code reproduces the error:

new aws_elasticache.ServerlessCache(this, 'ServerlessCache', {
  engine: aws_elasitcache.Engine.MEMCACHED,
  vpc,
  majorEngineVersion: aws_elasticache.MajorVersion.Ver_8
});

cdk deploy execute, the following error ocurs.
Specified engine does not support major engine version 8)

Expected behavior

Elasticache memcache resource should create.

Additional context

[go-to-k]

Thanks for the report.

I will take it later.