[SYCL] Cherry-pick fixes for UR L0 v1 adapter memory leaks#20253

AlexeySachkov wants to merge 2 commits intointel:sycl-rel-6_3intel/llvm:sycl-rel-6_3from

AlexeySachkov:private/asachkov/cherry-pick-ur-l0-v1-memory-leak-fixesAlexeySachkov/llvm:private/asachkov/cherry-pick-ur-l0-v1-memory-leak-fixesCopy head branch name to clipboard