gnome: another cmake fix for packaging

Still not sure if this will work since it only
fails on the build machine.

Refs #74576

Change-Id: I4dd84fce736016c18668a6abcef7aa91d61e42c0
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 89fdb6f..881fba1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -287,7 +287,7 @@
 # install shell script which will launch "ring"
 INSTALL(
    FILES
-      ring
+      "${PROJECT_SOURCE_DIR}/src/ring"
    DESTINATION
       ${CMAKE_INSTALL_PREFIX}/bin
    PERMISSIONS