[duckdb 0.2.8] Apache arrow support

[suketa]

duckdb 0.2.8 provides C API of Apache arrow support.

Implement it in ruby-duckdb.

[nicosuave]

@suketa did you catch the official Ruby bindings in Arrow?

[nicosuave]

I wanted to call out this issue I opened in another Ruby library underlaid by Arrow, as the interoperability between such libraries is one of the things about this ecosystem that captivates me.

[kou]

You can use https://github.com/red-data-tools/red-arrow-duckdb for this.