Added DB connection back off

[nedvedba]

Summary by Sourcery

Add a back-off strategy for database connection retries in the TaskWorker to improve resilience against connection failures.

New Features:

• Introduce a back-off mechanism for database connection attempts in the TaskWorker to handle connection failures more gracefully.

[sourcery-ai[bot]]

Reviewer's Guide by Sourcery

This pull request implements a database connection back-off mechanism in the TaskWorker class to handle SDMS DB interface failures more gracefully. The changes introduce an exponential back-off strategy when encountering specific database connection errors.

File-Level Changes

Change	Details	Files
Implemented database connection back-off mechanism	Added a new variable 'db_connection_backoff' to track the current back-off time Initialized 'db_connection_backoff' to 1 second at the start of each task processing loop Reset 'db_connection_backoff' to 1 second after successful task execution Implemented exponential back-off logic when encountering SDMS DB interface failures Added a sleep mechanism using the calculated back-off time	core/server/TaskWorker.cpp

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[JoshuaSBrown]

@par-hermes format