[SYCL] Workaround windows build failure

Windows build failure is introduced in remote repository impacting our CI.
Make our CI to use version before the faulty commit (KhronosGroup/OpenCL-ICD-Loader@97f0eb5)

Author: vladimirlaz

sycl/CMakeLists.txt

@@ -100,7 +100,7 @@ if( NOT OpenCL_INCLUDE_DIRS )
   endif()
   ExternalProject_Add(ocl-headers
     GIT_REPOSITORY    https://github.com/KhronosGroup/OpenCL-Headers.git
-    GIT_TAG           origin/master
+    GIT_TAG           98ca71fb9f8484f1cd1999f55224bf9e8d18693b
     UPDATE_DISCONNECTED ${SYCL_EP_OCL_HEADERS_SKIP_AUTO_UPDATE}
     SOURCE_DIR        ${OpenCL_INCLUDE_DIRS}
     CONFIGURE_COMMAND ""