Bump debhelper from old 12 to 13.

Changes-By: lintian-brush
Fixes: lintian: package-uses-old-debhelper-compat-version
See-also: https://lintian.debian.org/tags/package-uses-old-debhelper-compat-version.html

debian/changelog

+python-agate-sql (0.5.5-5) UNRELEASED; urgency=medium
+
+  * Bump debhelper from old 12 to 13.
+
+ -- Debian Janitor <janitor@jelmer.uk>  Thu, 26 Aug 2021 00:05:48 -0000
+
 python-agate-sql (0.5.5-4) unstable; urgency=medium
 
   * Add @builddeps@ to autopkgtests' Depends

debian/control

@@ -3,7 +3,7 @@ Maintainer: Debian Python Team <team+python@tracker.debian.org>
 Uploaders: Ghislain Antony Vaillant <ghisvail@gmail.com>
 Section: python
 Priority: optional
-Build-Depends: debhelper-compat (= 12),
+Build-Depends: debhelper-compat (= 13),
                dh-python,
                dpkg-dev (>= 1.17.14),
                python-agate-doc <!nodoc>,