[SYCL][NFC] Fix post-commit failure (#12126)

Signed-off-by: Larsen, Steffen <[email protected]>

Author: steffenlarsen

sycl/source/detail/kernel_program_cache.hpp

@@ -71,7 +71,7 @@ class KernelProgramCache {
     BuildState
     waitUntilTransition(BuildState From = BuildState::BS_InProgress) {
       BuildState To;
-      std::unique_lock Lock(MBuildResultMutex);
+      std::unique_lock<std::mutex> Lock(MBuildResultMutex);
       MBuildCV.wait(Lock, [&] {
         To = State;
         return State != From;