Arrow uint32/64 support

### Is your feature request related to a problem or challenge?

`iceberg::spec::Schema::try_from` tries to construct an Iceberg schema from an arrow schema, but does not support converting uint types.

### Describe the solution you'd like

`ArrowSchemaVisitor::primitive` must support uint types, currently throws `Error: DataInvalid => Unsupported Arrow data type: UInt64`

### Willingness to contribute

None

Start at ArrowSchemaVisitor::primitive, the entry point named in the issue, and inspect how existing Arrow primitive types are converted during iceberg::spec::Schema::try_from. Add support for UInt32 and UInt64, then verify that Arrow schemas using those types convert without the reported Unsupported Arrow data type error.

Written by the indexing model from the issue text.