Test failure: test_all_types fails because the correct_answer_map does not have any values for the varint column

[rpbouman]

Running make test fails with:

TestDuckDBJDBC#test_all_types failed with java.lang.NullPointerException
java.lang.NullPointerException
        at org.duckdb.TestDuckDBJDBC.test_all_types(TestDuckDBJDBC.java:3981)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:566)
        at org.duckdb.test.Runner.runTests(Runner.java:45)
        at org.duckdb.TestDuckDBJDBC.main(TestDuckDBJDBC.java:4525)

The test fails unexpectedly because the correct_answer_map is not populated with the values for the varint column (https://github.com/duckdb/duckdb-java/blob/main/src/test/java/org/duckdb/TestDuckDBJDBC.java#L3854).

Apart from populating the map with the types, It would also be nice to assert that the map contains values for the specified column and then report the column name if they are missing.