[UR][L0] Maintain Lock of Queue while syncing the Last Command Event

pre-commit PR for oneapi-src/unified-runtime#1749

Signed-off-by: Neil R. Spruit <neil.r.spruit@intel.com>

sycl/plugins/unified_runtime/CMakeLists.txt

@@ -110,13 +110,7 @@ if(SYCL_PI_UR_USE_FETCH_CONTENT)
 
   fetch_adapter_source(level_zero
     ${UNIFIED_RUNTIME_REPO}
-    # commit 8788bd13cceb3f8e6338538b624652e6249a4543
-    # Merge: 78d02039 3f502d8f
-    # Author: Kenneth Benzie (Benie) <k.benzie@codeplay.com>
-    # Date:   Wed Jun 12 13:13:52 2024 +0100
-    #     Merge pull request #1697 from againull/review/againull/l0_loader
-    #     [L0] Add flexibility to change level zero repo
-    8788bd13cceb3f8e6338538b624652e6249a4543
+    6db9291f22a0fa323268de2b996ee1648432f1c8
   )
 
   fetch_adapter_source(opencl