Fix tests (mongodb#1724)

*   Update Dockerfile, add for methods setUp and tearDown return type hint in all tests, replace fire on dispatch

* Resolve error test with touch

* Use COMPOSER_VERSION in Dockerfile

* Add alias for composer

* Change parent method's names
Broken commit in laravel: laravel/framework@2ee1892

* Remove changes in .travis.yml

* Remove changes from Dockerfile

* Revert changes in docker-compose.yml

* Update image with mysql

Merge pull request mongodb#1712 from graphicms/master

Update originalIsEquivalent to work with Laravel 5.8

Merge pull request mongodb#1696 from emprove/master

reassigned getDatabaseName method

Merge pull request mongodb#1661 from Zuken/fix_where_in

Replaced whereIn method retrieval for relations

Merge pull request mongodb#1650 from Zuken/compatibility_5.7.14

laravel/lumen 5.7.14 compatibility

Merge pull request mongodb#1583 from bTokman/master

Fix issue using query builder first() method (in case with usage outside the Laravel)

Merge pull request mongodb#1454 from RomM1/queueable-relationships

fix serialize embedded relationships

Merge pull request mongodb#1423 from milanspv/fix/delete-nested-embeds

[Fix] Unable to delete nested embedded models

Merge pull request mongodb#1428 from RemiCollin/master

Laravel 5.6 support

Merge pull request mongodb#1317 from DoSomething/chunkById-5.5

Fix issue with chunkById.