## Purpose
* Fixes https://roadmap.entgra.net/issues/10050
## Description
* Converting BIGINT to timestamp directly is not supported with MSSQL. Timestamp class is used for conversion.
Co-authored-by: prathabanKavin <kavinprathaban025@gmail.com>
Reviewed-on: community/device-mgt-core#117
Co-authored-by: Kavin Prathaban <kavin@entgra.io>
Co-committed-by: Kavin Prathaban <kavin@entgra.io>