feat(iceberg): support drop table for nimtable

[chenzl25]

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What's changed and what's your intention?

• To implement drop table, we need to upgrade our iceberg-rust SDK.
• The workflow of drop table:
  1. drop sink.
  2. purge iceberg table from warehouse
  3. drop iceberg table from catalog
  4. drop source
  5. drop hummock table

Checklist

• I have written necessary rustdoc comments
• I have added necessary unit tests and integration tests
• I have added test labels as necessary. See details.
• I have added fuzzing tests or opened an issue to track them. (Optional, recommended for new SQL features Sqlsmith: Sql feature generation #7934).
• My PR contains breaking changes. (If it deprecates some features, please create a tracking issue to remove them in the future).
• All checks passed in ./risedev check (or alias, ./risedev c)
• My PR changes performance-critical code. (Please run macro/micro-benchmarks and show the results.)

• My PR contains critical fixes that are necessary to be merged into the latest release. (Please check out the details)

Documentation

• My PR needs documentation updates. (Please use the Release note section below to summarize the impact on users)

Release note

If this PR includes changes that directly affect users or other significant modifications relevant to the community, kindly draft a release note to provide a concise summary of these changes. Please prioritize highlighting the impact these changes will have on users.

[Li0k]

Add some todo comments:

1. Repeatable deletion to ensure system robustness in case of deletion failure
2. Consider the order of deletion, the source should be deleted first to ensure that other sessions are no longer readable.