[FlightRPC][Java] Properties of JDBC driver are not autodiscovered by clients like DBeaver

### Describe the enhancement requested

When using the JDBC Flight SQL driver with DBeaver, some options are shown, but not the Arrow Flight SQL specific ones like useEncryption. They have to be added manually.


It seems Avatica supports these, because these options come from Avatica. Ideally we could get our own options in that display as well. https://github.com/apache/calcite-avatica/blob/07c6b8d92f478646e3e605a80dc0d60329c37d33/core/src/main/java/org/apache/calcite/avatica/BuiltInConnectionProperty.java#L101

### Component(s)

FlightRPC, Java

Start with the Java Flight SQL JDBC driver and compare how its connection properties are exposed with Avatica's BuiltInConnectionProperty.java, linked in the issue. Reproduce the connection setup in DBeaver and trace which property metadata it autodiscovers. Done means Flight SQL-specific options such as useEncryption appear in DBeaver without manual entry.

Written by the indexing model from the issue text.