[UR] Use reference counting on factories

Pre-commit MR for oneapi-src/unified-runtime#2048

Author: RossBrunton

sycl/cmake/modules/UnifiedRuntimeTag.cmake

@@ -1,7 +1,6 @@
-# commit cd92e72bbc4ebddef63c63c0f7e66a410f4b9552
-# Merge: 9a209aa5 b1222f08
-# Author: Callum Fare <callum@codeplay.com>
-# Date:   Wed Nov 13 09:57:16 2024 +0000
-#     Merge pull request #2254 from PietroGhg/pietro/events_rr
-#     [NATIVECPU] Implement events on Native CPU
-set(UNIFIED_RUNTIME_TAG cd92e72bbc4ebddef63c63c0f7e66a410f4b9552)
+# commit ccab45fe170ac11d66151c0ba01a8a93094d08eb
+# Author: Ross Brunton <ross@codeplay.com>
+# Date:   Wed Sep 4 17:25:11 2024 +0100
+#    Use reference counting on factories
+set(UNIFIED_RUNTIME_REPO "https://github.com/RossBrunton/unified-runtime.git")
+set(UNIFIED_RUNTIME_TAG ccab45fe170ac11d66151c0ba01a8a93094d08eb)