Merge branch 'standardize_test_database_root_folder' into 'master'

beat/backend/python/test/__init__.py

beat/backend/python/test/prefix/databases/crash/1.json

...d/python/test/prefix/databases/duplicate_key_error/1.json

beat/backend/python/test/prefix/databases/integers_db/1.json

beat/backend/python/test/prefix/databases/integers_db/2.json

...ckend/python/test/prefix/databases/integers_db_env/1.json

...ckend/python/test/prefix/databases/integers_db_env/2.json

...ackend/python/test/prefix/databases/python_keyword/1.json

.../backend/python/test/prefix/databases/syntax_error/1.json

...ckend/python/test/prefix/databases/with_parameters/1.json

...ckend/python/test/prefix/databases/with_parameters/2.json