[AMORO-4149]: Remove duplicate iceberg-bundled-guava dependency declaration in amoro-format-iceberg.

[slfan1989]

Why are the changes needed?

The amoro-format-iceberg/pom.xml file contains duplicate declarations of the iceberg-bundled-guava dependency at two different locations (lines 98-102 and lines 161-167). This redundancy causes unnecessary clutter in the build configuration and could potentially lead to confusion during maintenance.

Close #4149.

Brief change log

• Remove the duplicate iceberg-bundled-guava dependency declaration (lines 161-167) from amoro-format-iceberg/pom.xml
• Keep the first declaration (lines 98-102) which is better organized with other iceberg-related dependencies

How was this patch tested?

• Add some test cases that check the changes thoroughly including negative and positive cases if possible

• Add screenshots for manual tests if appropriate

• Run test locally before making a pull request

Documentation

• Does this pull request introduce a new feature? (yes / no)
• If yes, how is the feature documented? (not applicable / docs / JavaDocs / not documented)