Bump LXQt build depends.

debian/changelog

@@ -1,6 +1,7 @@
 compton-conf (0.15.0-0ubuntu1) UNRELEASED; urgency=medium
 
   * New upstream release.
+    - Bump LXQt build depends.
   * Run wrap-and-sort.
   * Update upstream's signing key.
   * Update copyright.

debian/control

@@ -12,7 +12,7 @@ Build-Depends: debhelper-compat (= 12),
                libqt5svg5-dev,
                libqt5x11extras5-dev,
                libx11-dev,
-               lxqt-build-tools (>= 0.6.0)
+               lxqt-build-tools (>= 0.7.0)
 Standards-Version: 4.5.0
 Vcs-Browser: https://phab.lubuntu.me/source/compton-conf/
 Vcs-Git: https://phab.lubuntu.me/source/compton-conf.git