Update iceberg 1.7.0

[MonkeyCanCode]

Description

Update public site as well as getting start example to use Apache Iceberg 1.7.0. We may want to hold off on upper the trino build as there is a defective for apache/iceberg#11539

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• Documentation update
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

The change for spark is tested via test suits according to #442.

Checklist:

Please delete options that are not relevant.

• [] I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• If adding new functionality, I have discussed my implementation with the community using the linked GitHub issue