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-msrest (0.6.21-2) UNRELEASED; urgency=medium
+
+  * Bump debhelper from old 12 to 13.
+
+ -- Debian Janitor <janitor@jelmer.uk>  Thu, 26 Aug 2021 07:20:07 -0000
+
 python-msrest (0.6.21-1) unstable; urgency=medium
 
   * Team upload.

debian/control

@@ -4,7 +4,7 @@ Uploaders: Antoine R. Dumont (@ardumont) <antoine.romain.dumont@gmail.com>,
            Nicolas Dandrimont <olasd@debian.org>
 Section: python
 Priority: optional
-Build-Depends: debhelper-compat (= 12),
+Build-Depends: debhelper-compat (= 13),
                dh-python,
                python3-aiohttp (>= 3),
                python3-aiodns,