[CI] Update sycl-weekly.yml (#17601)

sycl_cts_artifact is required for build-sycl-cts step. Also update name
& comments.

Author: KornevNikita

.github/workflows/sycl-weekly.yml

@@ -1,11 +1,9 @@
-# This workflow builds SYCL-CTS with -fsycl-use-spirv-backend-for-spirv-gen and
-# runs it with opencl:cpu & gen12 and level_zero:gpu & PVC on Sundays.
-
-name: SYCL-CTS with SPIR-V backend
+name: SYCL Weekly
 
 on:
   workflow_dispatch:
   schedule:
+    # At 00:00 on Sunday.
     - cron: '0 0 * * 0'
 
 permissions: read-all
@@ -20,6 +18,7 @@ jobs:
       build_artifact_suffix: default
       build_configure_extra_args: ''
 
+  # This job builds SYCL-CTS with -fsycl-use-spirv-backend-for-spirv-gen.
   build-sycl-cts:
     needs: ubuntu2204_build
     if: ${{ always() && !cancelled() && needs.ubuntu2204_build.outputs.build_conclusion == 'success' }}
@@ -35,6 +34,7 @@ jobs:
       sycl_toolchain_archive: ${{ needs.ubuntu2204_build.outputs.artifact_archive_name }}
       sycl_toolchain_decompress_command: ${{ needs.ubuntu2204_build.outputs.artifact_decompress_command }}
       extra_cmake_args: -DDPCPP_FLAGS=-fsycl-use-spirv-backend-for-spirv-gen
+      sycl_cts_artifact: sycl_cts_bin
 
   run-sycl-cts:
     needs: [ubuntu2204_build, build-sycl-cts]