enable tests for app, fix bugs, disable LibraryTest.testRdd

[tnazarew]

Signed-off-by: tomasznazarewicz t.nazarewicz94@gmail.com

Problem

app module was only running integration tests

Original solution assumed that the test will be enabled and all potential bugs fixed. That worked for all tests except LibraryTest.testRdd, which has two problems:

1. java.lang.NoSuchMethodError: io.openlineage.client.OpenLineageClientUtils.newObjectMapper()Lcom/fasterxml/jackson/databind/ObjectMapper;
2. when ObjectMapper was changed there is issue with serialization, if test is run with ./gradlew app:test the tests are passing but if it's run with ./gradlew app:build the OpenLineage.RunFacets.additionalProperties is serialized as additional field and test is failing

EDIT:
It turns out there are also issues with Delta.

Closes: potentially -> https://openlineage.slack.com/archives/C01CK9T7HKR/p1658868064009839

Solution

It seems to be a blocking issue so the proposed solution for now is to disable LibraryTest.testRdd and DeltaDataSourceTest.testInsertIntoDeltaSource so everything is passing and in the meantime investigate both issues

[pawel-big-lebowski]

Please mention new issue related to disabled tests.
Even though there are such tests, it's still better to merge it and turn on tests on app.