Revert "Update to laravel/tinker 2.0"
Revert "Update to laravel/tinker 2.0"

This reverts commit b361fa518af35d9d195f9086242d2cbcfecfa2b0.

laravel/tinker 2.x looks like it requires Laravel 6, so go back
to laravel/tinker 1.x for now.

imabug/raddb,imabug/raddb,imabug/raddb