Update the changelog for 5.4.x versions

Update the changelog for 5.4.x versions

Remove HHVM tests

Remove unnecessary line following merging PHP-DI#545

Merge pull request PHP-DI#507 from PHP-DI/compile-factories

Compile factories, including closures

Merge pull request PHP-DI#500 from sagikazarmark/patch-1

Fix typo

Merge pull request PHP-DI#497 from PHP-DI/styleci

Strict types everywhere

Merge pull request PHP-DI#449 from PHP-DI/refactor-object-to-create

Refactor object() to create() and autowire()

Merge pull request PHP-DI#467 from rayward/autoregister-interface

Register the container against the PSR ContainerInterface.

Merge pull request PHP-DI#466 from siwinski/add-psr-container-impleme…

…ntation-composer-provide

Add psr/container-implementation Composer provide