fixup! Modify build system

Bug 42201: Sign all the channels of local builds

fenix/tools/tba-sign-devbuilds.sh

@@ -41,8 +41,10 @@ sign () {
 	echo "Signed $out"
 }
 
-for apk in app/build/outputs/apk/fenix/release/*-unsigned.apk; do
+for channel in app/build/outputs/apk/fenix/*; do
+	for apk in $channel/*-unsigned.apk; do
 		sign "$apk"
 	done
+done
 
 rm -rf "$tmpdir"