v1.0.0

What's Changed

• Make events' properties mutable by @loevgaard in #34
• Remove \JsonSerializable implementation by @loevgaard in #35
• Allow PHP 7.4 by @loevgaard in #37
• Make the events ecommerce aware to be able to use Google Tag Manager easily by @loevgaard in #42

Full Changelog: v0.4.3...v1.0.0