[SPARK-3011][SQL] _temporary directory should be filtered out by sqlContext.parquetFile

Author: Chia-Yung Su <chiayung@appier.com>

Closes #1924 from joesu/bugfix-spark3011 and squashes the following commits:

c7e44f2 [Chia-Yung Su] match syntax
f8fc32a [Chia-Yung Su] filter out tmp dir

(cherry picked from commit 078f3fbda860e2f5de34153c55dfc3fecb4256e9)
Signed-off-by: Michael Armbrust <michael@databricks.com>