feat: implement exponential backoff strategy for error handling in extractor and loader processes; enhance retry configuration options

cmd/go_migrate/process.go

@@ -95,8 +95,22 @@ func processMigrationJob(
 		}
 	}()
 
-	go custom_errors.ExtractorErrorHandler(jobCtx, job.Retry.Attempts, chExtractorErrors, chPartitions, chJobErrors, &wgActivePartitions)
-	go custom_errors.LoaderErrorHandler(jobCtx, job.Retry.Attempts, chLoadersErrors, chBatchesTransformed, chJobErrors, &wgActiveBatches)
+	go custom_errors.ExtractorErrorHandler(
+		jobCtx,
+		job.Retry,
+		chExtractorErrors,
+		chPartitions,
+		chJobErrors,
+		&wgActivePartitions,
+	)
+	go custom_errors.LoaderErrorHandler(
+		jobCtx,
+		job.Retry,
+		chLoadersErrors,
+		chBatchesTransformed,
+		chJobErrors,
+		&wgActiveBatches,
+	)
 
 	maxExtractors := min(job.MaxExtractors, len(partitions))
 	log.Infof("Starting %d extractor(s)...", maxExtractors)