[SYCL] Fix assert unit test warning (#13738)

This value is the size of the data associated with the property, but for
`PI_PROPERTY_TYPE_UINT32`, the data is always `nullptr` so this should
be 0.

I suspect the initial patch meant to construct a vector of 4 values of
0, but that initializer list construct a vector of 2 values with 4 and 0
instead.

Should fix: #13737

Author: npmiller

sycl/unittests/helpers/PiImage.hpp

@@ -392,7 +392,7 @@ inline void setKernelUsesAssert(const std::vector<std::string> &Names,
                                 PiPropertySet &Set) {
   PiArray<PiProperty> Value;
   for (const std::string &N : Names)
-    Value.push_back({N, {4, 0}, PI_PROPERTY_TYPE_UINT32});
+    Value.push_back({N, {0, 0, 0, 0}, PI_PROPERTY_TYPE_UINT32});
   Set.insert(__SYCL_PI_PROPERTY_SET_SYCL_ASSERT_USED, std::move(Value));
 }