Hardcoded HDFS path in test_avro_stale_schema causes all other filesystems to fail

---- QUERY
CREATE EXTERNAL TABLE alltypesagg_staleschema (
  id INT,
  bool_col BOOLEAN,
  tinyint_col INT,
  smallint_col INT,
  int_col INT,
  bigint_col BIGINT,
  float_col FLOAT,
  double_col DOUBLE,
  date_string_col STRING,
  string_col STRING,
  timestamp_col STRING
)
LOCATION 'hdfs://localhost:20500//test-warehouse/alltypesaggmultifilesnopart_avro_snap'
TBLPROPERTIES ('avro.schema.url'= '/test-warehouse/avro_schemas/functional/alltypesaggmultifilesnopart.json')