Pact Foundation

<https://github.com/pact-foundation/pact-php/pull/286|#286 Add email matcher>
Pull request opened by <https://github.com/tienvx|tienvx>
This pull request *does not* related to Rust FFI. I copy the matcher from <https://github.com/pact-foundation/pact-js/blob/master/src/dsl/matchers.ts#L14|pact-js> because I think it will be useful.

This pull request depend on <https://github.com/pact-foundation/pact-php/pull/285|#285>, please review it first.
<https://github.com/pact-foundation/pact-php|pact-foundation/pact-php>
GitHub Actions: PHP 8.2 on windows-latest with lowest dependencies
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