Bumps [semver](https://github.com/dtolnay/semver) from 0.11.0 to 1.0.0.
- [Release notes](https://github.com/dtolnay/semver/releases)
- [Commits](https://github.com/dtolnay/semver/compare/0.11.0...1.0.0

)

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Bumps [url](https://github.com/servo/rust-url) from 2.2.1 to 2.2.2.
- [Release notes](https://github.com/servo/rust-url/releases)
- [Commits](https://github.com/servo/rust-url/compare/v2.2.1...v2.2.2

)

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Bumps [pretty_assertions](https://github.com/colin-kiegel/rust-pretty-assertions) from 0.7.1 to 0.7.2.
- [Release notes](https://github.com/colin-kiegel/rust-pretty-assertions/releases)
- [Changelog](https://github.com/colin-kiegel/rust-pretty-assertions/blob/main/CHANGELOG.md)
- [Commits](https://github.com/colin-kiegel/rust-pretty-assertions/compare/v0.7.1...v0.7.2

)

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Bumps [serde](https://github.com/serde-rs/serde) from 1.0.124 to 1.0.125.
- [Release notes](https://github.com/serde-rs/serde/releases)
- [Commits](https://github.com/serde-rs/serde/compare/v1.0.124...v1.0.125

)

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Bumps [pretty_assertions](https://github.com/colin-kiegel/rust-pretty-assertions) from 0.6.1 to 0.7.1.
- [Release notes](https://github.com/colin-kiegel/rust-pretty-assertions/releases)
- [Changelog](https://github.com/colin-kiegel/rust-pretty-assertions/blob/main/CHANGELOG.md)
- [Commits](https://github.com/colin-kiegel/rust-pretty-assertions/compare/v0.6.1...v0.7.1

)

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Bumps [serde](https://github.com/serde-rs/serde) from 1.0.123 to 1.0.124.
- [Release notes](https://github.com/serde-rs/serde/releases)
- [Commits](https://github.com/serde-rs/serde/compare/v1.0.123...v1.0.124

)

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Bumps [serde_json](https://github.com/serde-rs/json) from 1.0.62 to 1.0.64.
- [Release notes](https://github.com/serde-rs/json/releases)
- [Commits](https://github.com/serde-rs/json/compare/v1.0.62...v1.0.64

)

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Bumps [url](https://github.com/servo/rust-url) from 2.2.0 to 2.2.1.
- [Release notes](https://github.com/servo/rust-url/releases)
- [Commits](https://github.com/servo/rust-url/compare/v2.2.0...v2.2.1

)

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Bumps [serde_json](https://github.com/serde-rs/json) from 1.0.61 to 1.0.62.
- [Release notes](https://github.com/serde-rs/json/releases)
- [Commits](https://github.com/serde-rs/json/compare/v1.0.61...v1.0.62

)

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Bumps [serde](https://github.com/serde-rs/serde) from 1.0.122 to 1.0.123.
- [Release notes](https://github.com/serde-rs/serde/releases)
- [Commits](https://github.com/serde-rs/serde/compare/v1.0.122...v1.0.123

)

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Bumps [serde](https://github.com/serde-rs/serde) from 1.0.120 to 1.0.122.
- [Release notes](https://github.com/serde-rs/serde/releases)
- [Commits](https://github.com/serde-rs/serde/compare/v1.0.120...v1.0.122

)

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Bumps [serde](https://github.com/serde-rs/serde) from 1.0.119 to 1.0.120.
- [Release notes](https://github.com/serde-rs/serde/releases)
- [Commits](https://github.com/serde-rs/serde/compare/v1.0.119...v1.0.120

)

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Bumps [serde](https://github.com/serde-rs/serde) from 1.0.118 to 1.0.119.
- [Release notes](https://github.com/serde-rs/serde/releases)
- [Commits](https://github.com/serde-rs/serde/compare/v1.0.118...v1.0.119

)

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Bumps [serde_json](https://github.com/serde-rs/json) from 1.0.60 to 1.0.61.
- [Release notes](https://github.com/serde-rs/json/releases)
- [Commits](https://github.com/serde-rs/json/compare/v1.0.60...v1.0.61

)

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* Bump versions

* Upgrade dependencies

* Update CHANGELOG.md

* Fix CHANGELOG.md

* Remove changelog messages about CI

* Extract contract metadata to its own crate

* Add json serialization test

* Add json test for excluding optional fields

* Add doc tests and rename to contract-metadata

* Fmt

* Fix tests

* Fmt

* Builder API for contract metadata

* Tests for builder pattern

* Fmt

* Make metadata version camel case

* Builder optional fields

* Check whether fields have not already been set

* Check at least one author

* I really should check it compiles before pushing

* Oh yeah and cargo fmt fml

* Yeah