fix: resolve cyclical dev-dependency in iceberg

[sungwy]

The github workflow for publishing Iceberg rust crates to cargo has failed:

https://github.com/apache/iceberg-rust/actions/runs/12475862491/job/34819847073

Run cargo publish --all-features
  cargo publish --all-features
  shell: /usr/bin/bash -e {0}
  env:
    rust_msrv: 1.77.1
    CARGO_REGISTRY_TOKEN: 
    Updating crates.io index
   Packaging iceberg v0.4.0 (/home/runner/work/iceberg-rust/iceberg-rust/crates/iceberg)
   Verifying iceberg v0.4.0 (/home/runner/work/iceberg-rust/iceberg-rust/crates/iceberg)
    Updating crates.io index
error: failed to verify package tarball

Caused by:
  failed to select a version for the requirement `iceberg-catalog-memory = "^0.4.0"`
  candidate versions found which didn't match: 0.[3](https://github.com/apache/iceberg-rust/actions/runs/12475862491/job/34819847073#step:4:3).0
  location searched: crates.io index
  required by package `iceberg v0.[4](https://github.com/apache/iceberg-rust/actions/runs/12475862491/job/34819847073#step:4:4).0 (/home/runner/work/iceberg-rust/iceberg-rust/target/package/iceberg-0.4.0)`

In order to support automated crate publication workflow, we should resolve this circular dev-dependency on iceberg-catalog-memory in iceberg crate.

[Xuanwo]

Let me help fix it.