Allow dev for laravel 10 testing

Author: aarondfrancis

.github/workflows/tests.yml

@@ -71,6 +71,7 @@ jobs:
 
       - name: Install dependencies
         run: |
+          composer config minimum-stability dev
           composer self-update
           composer require "laravel/framework:${{ matrix.laravel }}" "orchestra/testbench:${{ matrix.testbench }}" --no-interaction --no-update
           composer update --${{ matrix.dependency-version }} --prefer-dist --no-interaction