chore: release v0.15.0

[github-actions]

🤖 New release

• tinytime: 0.14.4 -> 0.15.0 (⚠ API breaking changes)

⚠ tinytime breaking changes

--- failure feature_missing: package feature removed or renamed ---

Description:
A feature has been removed from this package's Cargo.toml. This will break downstream crates which enable that feature.
        ref: https://doc.rust-lang.org/cargo/reference/semver.html#cargo-feature-remove
       impl: https://github.com/obi1kenobi/cargo-semver-checks/tree/v0.46.0/src/lints/feature_missing.ron

Failed in:
  feature bincode in the package's Cargo.toml

Changelog

0.15.0 - 2026-03-09

Other

• [breaking] Update dependencies, remove bincode, update rust (#141)
• Bump chrono from 0.4.41 to 0.4.43 in the cargo group (#138)
• Bump serde_json from 1.0.142 to 1.0.149
• Bump serde from 1.0.225 to 1.0.228 in the cargo group (#133)

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This PR was generated with release-plz.