Enhance Cache Refresh to Account for Exceptions

Currently Cron Job triggers incremental cache refresh. Time period to retrieve records starts from the last time when cron job ran. If OSDU was unreachable due to any issue from gcz, incremental refresh will not consider the records added/updated during this time period.

Acceptance Criteria: GCZ should account for certain exceptions in connecting to OSDU and in such scenarios, time period should be such that no updates are lost