Updated CHANGELOG.md

Updated CHANGELOG.md

Make optional parameters nullable even when they have a default value (…

…#561)

Bump phpstan/phpstan from 1.10.13 to 1.10.14 in /tools (#392)

Bumps [phpstan/phpstan](https://github.com/phpstan/phpstan) from 1.10.13 to 1.10.14.
- [Release notes](https://github.com/phpstan/phpstan/releases)
- [Changelog](https://github.com/phpstan/phpstan/blob/1.11.x/CHANGELOG.md)
- [Commits](phpstan/phpstan@1.10.13...1.10.14)

---
updated-dependencies:
- dependency-name: phpstan/phpstan
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Updated amazon sp api models to the latest version (#399)

* Updated amazon sp api models to the latest version

* Expose Order Approvals API through SDK

Make marketplace id optional in GetOffersResult

Added support for psr/log ^3.0 (#342)

Removed - development leftover

Fixed creating http signature for queries with spaces (#341)

Fix issues with currency codes other than USD and GBP (#331)