failed to start tiup cluster with tidb-cse mode

Bug Report

Please answer these questions before submitting your issue. Thanks!

1. What did you do?

minio server ~/tmp/tmp/ --console-address "0.0.0.0:19090" --address "0.0.0.0:19000"
mc mb localminio/playground
tiup playground nightly --mode tidb-cse --cse.bucket playground --cse.s3_endpoint "http://127.0.0.1:19000" --host 0.0.0.0 --tiflash 1

2. What did you expect to see?
   cluster setup successfully.

3. What did you see instead?
   got the following error:

config file /home/guojiangtao/.tiup/data/UusDrRB/tidb-0/tidb.toml contained invalid configuration options: enable-safe-point-v2, force-enable-vector-type, ratelimit, ratelimit.block-write-watermark, ratelimit.full-speed, ratelimit.full-speed-capacity, ratelimit.low-speed-watermark, tiflash-replicas, tiflash-replicas.extra-s3-rule, tiflash-replicas.group-id, tiflash-replicas.min-count, tiflash-replicas.constraints, tiflash-replicas.constraints.key, tiflash-replicas.constraints.op, tiflash-replicas.constraints.values, tiflash-replicas.constraints, tiflash-replicas.constraints.key, tiflash-replicas.constraints.op, tiflash-replicas.constraints.values; check TiDB manual to make sure this option has not been deprecated and removed from your TiDB version if the option does not appear to be a typo
invalid config: keyspace name is not supported for classic TiDB

4. What version of TiUP are you using (tiup --version)?

1.14.0 tiup
Go Version: go1.21.4
Git Ref: v1.14.0
GitHash: c3e9fc518aea0da66a37f82ee5a516171de9c372

Start by reproducing the documented minio setup and the tiup playground nightly --mode tidb-cse command. Inspect how the playground command builds and validates tidb.toml for tidb-cse mode; done means the cluster starts successfully without the reported invalid options or keyspace error.