Add support for Laravel 8

[martio]

Hi! Please support for Laravel ver. 8.x 👍

[eigan]

2.2.0 released thanks to @sojeda in #101, please try it out! :)

[froccsos]

Hi @eigan!

You should check this: https://packagist.org/packages/laravel-doctrine/migrations#2.2.0

requires

php: ^7.2
doctrine/migrations: ~2.2
illuminate/config: ^7.0
illuminate/console: ^7.0
illuminate/contracts: ^7.0
laravel-doctrine/orm: ^1.6

[eigan]

Sorry for this. I actually did the same mistake in laravel-doctrine/extensions#50.. 🤦‍♂️

Thanks for letting me know! I should test better myself.

[froccsos]

Thank you! :)