update benchmark scripts

Author: bratpiorka

.github/workflows/reusable_benchmarks.yml

@@ -103,7 +103,8 @@ jobs:
       uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
       with:
         repository: intel/llvm
-        ref: nightly-2025-02-19
+        # add preloaded UMF benchmarks (#17278)
+        ref: b2f9dab5266d227cc9eb19af1b54c5bdc50221d1
         path: sycl-repo
         fetch-depth: 1