Adding support to Laravel 9

[rafaelqm]

Adding support

[daniel-omnistock]

@rafaelqm @jeremykenedy

This PR added the requirement to manually add a non-public repository to your composer.json to be able to install a dev- version of a package. I do not know why this version is necessary but I think this procedure is really undesirable.

So if it really is necessary I suggest we wait for a stable version of the package and include it then. Otherwise just remove the dependency please.

[rafaelqm]

@rafaelqm @jeremykenedy

This PR added the requirement to manually add a non-public repository to your composer.json to be able to install a dev- version of a package. I do not know why this version is necessary but I think this procedure is really undesirable.

So if it really is necessary I suggest we wait for a stable version of the package and include it then. Otherwise just remove the dependency please.

Hi @daniel-omnistock , I just added the vcs pointing to my repo because the eklundkristoffer/seedster requires Laravel 8, and I've also send a PR to them to be able use the illuminate/support 9 eklundkristoffer/seedster#6.
I think that after they accepting my PR it won't be necessary.