Update sqlparse to 0.5.3

[pyup-bot]

This PR updates sqlparse from 0.5.0 to 0.5.3.

Changelog

0.5.3

----------------------------

Bug Fixes

* This version introduces a more generalized handling of potential denial of
service attack (DOS) due to recursion errors for deeply nested statements.
Brought up and fixed by living180. Thanks a lot!

0.5.2

----------------------------

Bug Fixes

* EXTENSION is now recognized as a keyword (issue785).
* SQL hints are not removed when removing comments (issue262, by skryzh).

0.5.1

----------------------------

Enhancements

* New "compact" option for formatter. If set, the formatter tries to produce
a more compact output by avoiding some line breaks (issue783).

Bug Fixes

* The strip comments filter was a bit greedy and removed too much
whitespace (issue772).
Note: In some cases you might want to add `strip_whitespace=True` where you
previously used just `strip_comments=True`. `strip_comments` did some of the
work that `strip_whitespace` should do.
* Fix error when splitting statements that contain multiple CASE clauses
within a BEGIN block (issue784).
* Fix whitespace removal with nested expressions (issue782).
* Fix parsing and formatting of ORDER clauses containing NULLS FIRST or
NULLS LAST (issue532).

Links

• PyPI: https://pypi.org/project/sqlparse
• Changelog: https://data.safetycli.com/changelogs/sqlparse/