Fix reading SAS7BDAT files with zero rows (#47116)

* Fix reading SAS7BDAT files with zero rows

* Add missing file

* Update test_sas7bdat.py

Author: jonashaag

doc/source/whatsnew/v1.5.0.rst

@@ -844,6 +844,7 @@ I/O
 - :meth:`to_html` now excludes the ``border`` attribute from ``<table>`` elements when ``border`` keyword is set to ``False``.
 - Bug in :func:`read_sas` returned ``None`` rather than an empty DataFrame for SAS7BDAT files with zero rows (:issue:`18198`)
 - Bug in :class:`StataWriter` where value labels were always written with default encoding (:issue:`46750`)
+-
 
 Period
 ^^^^^^