chore: release v0.18.0

[github-actions]

🤖 New release

• differential-dataflow: 0.17.0 -> 0.18.0 (⚠ API breaking changes)
• differential-dogs3: 0.17.0 -> 0.18.0

⚠ differential-dataflow breaking changes

--- failure constructible_struct_adds_field: externally-constructible struct adds field ---

Description:
A pub struct constructible with a struct literal has a new pub field. Existing struct literals must be updated to include the new field.
        ref: https://doc.rust-lang.org/reference/expressions/struct-expr.html
       impl: https://github.com/obi1kenobi/cargo-semver-checks/tree/v0.43.0/src/lints/constructible_struct_adds_field.ron

Failed in:
  field OrdKeyBatch.value in /tmp/.tmpcS3030/differential-dataflow/differential-dataflow/src/trace/implementations/ord_neu.rs:797
  field OrdKeyBatch.value in /tmp/.tmpcS3030/differential-dataflow/differential-dataflow/src/trace/implementations/ord_neu.rs:797

Changelog

differential-dataflow

0.18.0 - 2025-09-23

Other

• Batcher implementation that has no opinions about chains, and columnar. (#626)

differential-dogs3

0.17.0 - 2025-09-15

Other

• update Cargo.toml dependencies

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This PR was generated with release-plz.