Set debhelper-compat version in Build-Depends.

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

debian/changelog

@@ -3,6 +3,7 @@ node-es6-set (0.1.5-2) UNRELEASED; urgency=medium
   * Trim trailing whitespace.
   * Use secure copyright file specification URI.
   * Bump debhelper from deprecated 9 to 12.
+  * Set debhelper-compat version in Build-Depends.
 
  -- Debian Janitor <janitor@jelmer.uk>  Fri, 24 Apr 2020 07:18:18 +0000
 

debian/compat

-12

debian/control

@@ -4,7 +4,7 @@ Priority: optional
 Maintainer: Debian Javascript Maintainers <pkg-javascript-devel@lists.alioth.debian.org>
 Uploaders: Pirate Praveen <praveen@debian.org>
 Build-Depends:
- debhelper (>= 12~)
+ debhelper-compat (= 12)
  , dh-buildinfo
  , nodejs
 Standards-Version: 4.1.0