Update tests.yml

Author: crynobone

Diff for: .github/workflows/tests.yml

@@ -57,6 +57,8 @@ jobs:
       - name: Install dependencies
         run: |
            composer update --prefer-dist --no-interaction --no-progress --with="illuminate/contracts:^${{ matrix.laravel }}"
+        env:
+          COMPOSER_AUTH: '{"github-oauth": {"github.com": "${{ secrets.GITHUB_TOKEN }}"}}'
 
       - name: Execute tests
         run: vendor/bin/pest