Set debhelper-compat version in Build-Depends.

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

Author: debian-janitor

debian/changelog

@@ -2,6 +2,7 @@ config-package-dev (5.6) UNRELEASED; urgency=medium
 
   * Trim trailing whitespace.
   * Bump debhelper from deprecated 9 to 13.
+  * Set debhelper-compat version in Build-Depends.
 
  -- Debian Janitor <[email protected]>  Fri, 15 Oct 2021 06:50:58 -0000
 

debian/compat

@@ -7,7 +7,7 @@ Homepage: https://debathena.mit.edu/config-package-dev
 Vcs-Git: https://github.com/sipb/config-package-dev
 Vcs-Browser: https://github.com/sipb/config-package-dev
 Rules-Requires-Root: no
-Build-Depends: debhelper (>= 13~)
+Build-Depends: debhelper-compat (= 13)
 Standards-Version: 4.1.0
 
 Package: config-package-dev