Modification to allow for use with Kafka#6

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Imisrael wants to merge 2 commits intogriddb:masterfrom

Imisrael:master

Commits on Feb 23, 2024

updated build version to 8, 6 doesn't work with later java
Imisrael
committed
removed unnecessary throwing of error for setting timestamp, this works with generic jdbc drivers now
Imisrael
committed