[CI] Update sycl related workflows - their nightlies works again

Author: lukaszstolarczuk

.github/workflows/nightly.yml

@@ -495,13 +495,7 @@ jobs:
 
   # Run benchmarks with the latest SYCL (with the latest UMF copied into the SYCL)
   # to verify the compatibility.
-  #
-  # TODO: re-enable this job, when nightly sycl builds are again available;
-  #   the last one available (as of 24.07.2025) is not working properly with
-  #   compute benchmarks. Now, we could only build sycl from sources, or find a
-  #   matching version of compute benchmarks with last nightly package.
   Benchmarks-sycl:
-    if: false
     uses: ./.github/workflows/reusable_benchmarks.yml
     permissions:
       contents: write

.github/workflows/reusable_sycl.yml

@@ -15,10 +15,9 @@ jobs:
     name: ${{matrix.llvm_tag}} llvm build
     runs-on: ["DSS-LEVEL_ZERO", "DSS-UBUNTU"]
 
-    # TODO: update to use the nightly tag with UMF v1.0.0
     strategy:
       matrix:
-        llvm_tag: ["latest", "nightly-2025-07-18"] # "latest" or llvm with UMF v1.0.0-rc2
+        llvm_tag: ["latest", "nightly-2025-07-31"] # "latest" or llvm with UMF v1.0.0
 
     steps:
     # 1. Install sycl