Revert "fix: remove database.sql preloading for tests - migrations handle schema creation"

This reverts commit f25553edb5.

.github/workflows/build-release.yml

@@ -179,6 +179,9 @@ jobs:
             exit 1
           }
 
+      - name: Initialize database
+        run: docker exec -i mysql mysql -u root -proot ospos < app/Database/database.sql
+
       - name: Run PHPUnit tests
         env:
           CI_ENVIRONMENT: testing