copyright: Add licensing metadata
The scanner did not detect the correct overall license (Sleepycat) and missed that the packaging in lang/sql/odbc/debian/ is GPL-3 (which is fine, as it does not affect the built artifacts).
The scanner did not detect the correct overall license (Sleepycat) and missed that the packaging in lang/sql/odbc/debian/ is GPL-3 (which is fine, as it does not affect the built artifacts).