Add JsonDefinition container integration and tests

Introduces JsonDefinition for container integration, enabling aliasing of Json to JsonInterface. Adds corresponding unit tests for JsonDefinition and refactors JsonTest to use short docblock annotations. Updates composer.json to register the new definition and bumps several dev dependencies.

Signed-off-by: Nathanael Esayeas <[email protected]>

Update README.md

Signed-off-by: Nathanael Esayeas <[email protected]>

Update CHANGELOG.md

Signed-off-by: Nathanael Esayeas <[email protected]>

Update JsonTest.php

Signed-off-by: Nathanael Esayeas <[email protected]>

Merge pull request #13 from ghostwriter/feature/drop-php-80

feature/drop php 80

Merge pull request #10 from ghostwriter/feature/bump-psalm-5.1

feature/bump psalm 5.1

Update composer.json

Signed-off-by: Nathanael Esayeas <[email protected]>

Merge pull request #8 from ghostwriter/update-composer

update composer

Merge pull request #7 from ghostwriter/update-readme

Update README.md

Initial release (#1)

Signed-off-by: Nathanael Esayeas <[email protected]>