Add support for appending to INET columns

[eerohele]

Given:

λ duckdb /tmp/foo.db
v1.1.3 19864453f7
Enter ".help" for usage hints.
D INSTALL inet;
D LOAD inet;
D CREATE TABLE foo (ip INET NOT NULL);

Then, with org.duckdb/duckdb_jdbc v1.1.2:

Connection db = DriverManager.getConnection("jdbc:duckdb:/tmp/foo.db");
DuckDBAppender appender = DuckDBAppender.createAppender(db, DuckDBConnection.DEFAULT_SCHEMA, "foo");

appender.beginRow();
appender.append("1.2.3.4");
appender.endRow();

appender.close();

I get this error:

Invalid Input Error: Failed to cast value: Type VARCHAR with value '1.2.3.4' can't be cast to the destination type STRUCT

Is it possible to add support for appending to an INET column?