chore: release v0.4.3

[jondkinney]

🤖 New release

• vernier-rs-core: 0.4.2 -> 0.4.3
• vernier-rs-platform: 0.4.2 -> 0.4.3
• vernier-rs-ui: 0.4.0 -> 0.4.3
• vernier-rs: 0.4.2 -> 0.4.3

Changelog

vernier-rs

0.4.3 - 2026-05-31

Other

• update Cargo.lock dependencies
• canonical modifier order CTRL/SHIFT/ALT/SUPER

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This PR was generated with release-plz.

[jondkinney]

Closing — confirmed phantom release. This PR was opened by a release-pr job that ran while the v0.4.2 publish was still in flight, so it compared against a pre-publish registry (still showing v0.4.0) and "rediscovered" already-released changes. Re-running release-pr now that the registry is settled at v0.4.2 returns {"prs":[]} (nothing to release). Recurrence prevented by #30 (gate release-pr on the publish job).