[MINOR] Update release version to reflect published version 0.2.0-inc…

…ubating

0.1.0-incubating Release

Iceberg ITs (#219)

* Iceberg Data generation + IT source tests

* add test for snapshot expiry

* more changes

* more fixes

* pr feedback

* more changes

* fix closeable in tests

* removing changes no longer needed

* more changes

* cleanups

* more changes

* more changes

* more changes

* fix tests

* more changes