lightning analyze table parameter change to avoid tidb OOM

[fubinzh]

Bug Report

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1. Minimal reproduce step (Required)

When tidb global.tidb_analyze_version=2 and lightning import 70GB table in TiDB, TiDB might OOM during analyze phase of lightning import.
./tidb-lightning -config /minio/fubin/dbgen/v2data/lightning.toml

2. What did you expect to see? (Required)

lightning import succeed, and TiDB not OOM

3. What did you see instead (Required)

TiDB OOM

4. What is your TiDB version? (Required)

TiDB: 5.2.0
Lightning: 5.2.0

[ti-srebot]

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