chore: support to php 8.1

What's Changed

• fix: consider null values on json asserts by @miguel-tzab in #13

New Contributors

• @miguel-tzab made their first contribution in #13

Full Changelog: 3.0.1...3.1.0

3.0.1 - fix bug duplicate headers, support phpunit 10

What's Changed

• feat: add support for phpunit 10 by @Rocko10 in #11
• fix: avoid duplicate headers by @felipegirotti in #12

Full Changelog: 3.0.0...3.0.1

3.0.0

• Upgrade for dependencies to support PHP 8 and 8.1.
• Remove the deprecated Silex for tests, using Silex (to keep extremally simple for tests only)
• Remove travis tests in favor to use GitHubActions.

Version 2.0.0

Merge pull request #6 from bycosta/master

Update PHPUnit to ^6.0.

1.2.3: Merge pull request #4 from LinioIT/feature/update-composer-deps

Updated composer dependencies.

Fix form data

1.2.1

Merge pull request #2 from damian-arroyo/feature/add-form-data-defini…

Updated Guzzle library to version 6.

This release may break compatibility with projects that requires Guzzle version prior to 6.