refactor: make SqlToRel::new derive the parser options from the context provider

[niebayes]

Which issue does this PR close?

• Closes Make SqlToRel respect parser options from ContextProvider #13700.

Rationale for this change

What changes are included in this PR?

Previously, the SqlToRel::new method uses a default ParserOptions.
Now, its parser options derive the SqlParserOptions from the context provider.

Are these changes tested?

Yes, covered by existing test cases.

Are there any user-facing changes?

Previously, users need to set the parser options once when creating a session config, and again when creating a SqlToRel.
Now, users can set the parser options only once when creating a session config, and expect each SqlToRel's created by SqlToRel::new derives the parser options in the session config.

[alamb]

Thanks @niebayes -- this makes sense to me

Could we please add some sort of test to amke sure we don't accidentally break this in the future? Like maybe a query that requires enable_ident_normalization ?

[niebayes]

@alamb Sure, I'll add some tests soon.

[alamb]

@alamb Sure, I'll add some tests soon.

Let's do it in a follow on PR to reduce the review queue

• Filed Add tests for new parser options #14900