Fix GlueHiveMetastore#batchGetPartition to handle unprocessedKeys

[rentaow]

AwsGlue's BatchGetPartitionsRequest could potentially not return all requested partition values. If Glue returns incomplete partitions, the presto query will error out from this line. This change is to handle unprocessedKeys from BatchGetParititonsResults.

https://docs.aws.amazon.com/glue/latest/dg/aws-glue-api-catalog-partitions.html

BatchGetPartition (Response)

Partitions – An array of Partition objects.

A list of the requested partitions.

UnprocessedKeys – An array of PartitionValueList objects, not more than 1000 structures.

A list of the partition values in the request for which partitions were not returned.

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[mosabua]

These changes were absorbed in the linked and merged PR #10696. We can therefore close this inactive PR.