[CI] Update SYCL version in our workflows

Author: lukaszstolarczuk

.github/workflows/nightly.yml

@@ -495,7 +495,13 @@ 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_benchmarks.yml

@@ -126,9 +126,9 @@ jobs:
         repository: intel/llvm
         # Note: The same ref is used in docs build (for dashboard generation)!
         #
-        # 11.07.2025
+        # 23.07.2025
         # branch: sycl
-        ref: b68f49e0a03fb63de5a3e207f0f65247964d337b
+        ref: 3d8e0490dc88af53335616c9ace38d669037ae67
         path: sc
         sparse-checkout: |
           devops/scripts/benchmarks

.github/workflows/reusable_docs_build.yml

@@ -53,9 +53,9 @@ jobs:
       uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
       with:
         repository: intel/llvm
-        # 11.07.2025
+        # 23.07.2025
         # branch: sycl
-        ref: b68f49e0a03fb63de5a3e207f0f65247964d337b
+        ref: 3d8e0490dc88af53335616c9ace38d669037ae67
         path: sc
         sparse-checkout: |
           devops/scripts/benchmarks

.github/workflows/reusable_sycl.yml

@@ -15,9 +15,10 @@ 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-2025-07-09"] # "latest" or llvm with UMF v1.0.0-rc1
+        llvm_tag: ["latest", "nightly-2025-07-18"] # "latest" or llvm with UMF v1.0.0-rc2
 
     steps:
     # 1. Install sycl