feat(optimizer)!: Annotate ISINF(expr) for DuckDB

[AbhishekASLK]

This PR annotate isinf(expr) for DuckDB as BOOLEAN

duckdb> select isinf('Infinity'::float);
┌──────────────────────────────────┐
│ isinf(CAST('Infinity' AS FLOAT)) │
╞══════════════════════════════════╡
│                             true │
└──────────────────────────────────┘

Official documentation:
https://duckdb.org/docs/stable/sql/functions/numeric#isinfx

[georgesittas]

This should be in the base annotator, not here. It applies generally AFAICT.

[AbhishekASLK]

Okay!

[VaggelisD]

Let's also remove it from BigQuery's type annotator given that we moved this to base

[georgesittas]

Thanks!