ci: try to fix windows composer

Author: ashleyhindle

.github/workflows/tests.yml

@@ -46,8 +46,9 @@ jobs:
           ssh-keyscan github.com >> ~/.ssh/known_hosts
 
       - name: Install dependencies
+        shell: bash
         run: |
-          composer update --prefer-dist --no-interaction --no-progress --with='illuminate/contracts:^^^^${{ matrix.laravel }}.0'
+          composer update --prefer-dist --no-interaction --no-progress --with='illuminate/contracts:^${{ matrix.laravel }}'
 
       - name: Execute tests
         run: vendor/bin/pest