Hive: Fix predicate pushdown for Timestamp.withZone()

[pvary]

During #2254 we postponed to create tests for tables where the column type is timestamp.withZone().
This PR adds them with the appropriate tests.

The premise:

• Hive2 uses sql.Timestamp internally - which is in the LocalTimezone
• Hive3 uses hive.Timestamp internally - which is in UTC
• Iceberg timestamp.withZone() stores the values in OffsetDateTime in UTC

What I have done:

• Fixed the conversions for IcebergTimestampWithZoneObjectInspector
• Simplified a code a little bit for IcebergTimestampObjectInspectorHive3
• Added the junit tests for SELECT
  • Had to add one more magic setting so the TimeZone is handled correctly
• Added additional check to the existing unit tests to make sure that we get back the same string in SQL as we insert
• Had to change the unit tests for Hive2, so the expected value in the Iceberg record is considers the TimeZone

[pvary]

@shardulm94: Could you please review this PR? This is the TimestampTz part of our previous change (#2254)

Thanks,
Peter

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