No need to build as Release.

debian/changelog

@@ -6,6 +6,7 @@ picom-conf (0.17.0-0ubuntu1) noble; urgency=medium
   * Removed no-manual-page Lintian override.
   * Added help2man automatic manpage generation.
   * Fixed an invalid documentation link in debian/upstream/metadata.
+  * Stopped specifying release build mode.
 
  -- Aaron Rainbolt <arraybolt3@ubuntu.com>  Fri, 05 Jan 2024 17:28:28 +0000
 

debian/rules

@@ -3,9 +3,6 @@
 %:
 	dh $@
 
-override_dh_auto_configure:
-	dh_auto_configure -- -DCMAKE_BUILD_TYPE=Release
-
 override_dh_installman:
 	help2man -N -n "configure the Picom compositor" "./debian/picom-conf/usr/bin/picom-conf -platform offscreen" > debian/picom-conf.1
 	dh_installman