[INLONG-7546][Sort] Fix dirty data not archived for iceberg connector

[lordcheng10]

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• Fixes [Bug][Sort] Fix dirty data not archived for iceberg connector #7546

Motivation

The S3DirtySink#open method is not called in IcebergSingleStreamWriter and IcebergMultipleStreamWriter, resulting in dirty data that may never be flushed and archived:

inlong/inlong-sort/sort-connectors/base/src/main/java/org/apache/inlong/sort/base/dirty/sink/s3/S3DirtySink.java

Lines 108 to 113 in 12ee6c4

	this.scheduledFuture = this.scheduler.scheduleWithFixedDelay(() -> {
	if (!closed && !flushing) {
	flush();
	}
	}, s3Options.getBatchIntervalMs(), s3Options.getBatchIntervalMs(), TimeUnit.MILLISECONDS);
	}

Modifications

In the open method of IcebergSingleStreamWriter and IcebergMultipleStreamWriter, call the DirtySink#open method