[improvement] Use new ReadBuilder and WriteBuilder API in tests about paimon

[JingsongLi]

I want to try it. Could you please assign it to me?

Welcome, you can just create PR for this. I think this may need multiple PRs.

[TyrantLucifer]

I want to try it. Could you please assign it to me?

[SteNicholas]

@JingsongLi, IMO, it's no need to create multiple PRs to solve this issue. @TyrantLucifer, you could create multiple commits for different modules in one PR. Please keep one commit for initial PR.

[JingsongLi]

Hi @TyrantLucifer , we don't just use the new ReadBuilder and WriteBuilder APIs either, we need to get rid of the FileStoreTable as well, our best practice is to use Catalog to create the Table and then follow through with the operations.

[JingsongLi]

@JingsongLi, IMO, it's no need to create multiple PRs to solve this issue. @TyrantLucifer, you could create multiple commits for different modules in one PR. Please keep one commit for initial PR.

One commit for initial PR? But create multiple commits for different modules in one PR? Can you explain more?