Conformance test for SYCL is not working.

I tried to build conformance test using the code repository given here, for SYCL compilers:
1. DPC++
2. Our own SYCL compiler

But, the build failed for both the above SYCL compilers.
For DPC++ it is giving error multiple time (screenshot attached):
```bash
/storage/ankit/SYCL-CTS/build/tests/vector_api/vector_api_bool.cpp:86:57: error: no type named 'value_type' in 'sycl::vec'
86 | CHECK(std::is_same_v::value_type, bool>);
```
Please provide solution for this issue.

Reference screenshots of DPC++ compiler conformance testing:
```bash
cmake -S . -B build -DSYCL_IMPLEMENTATION=DPCPP
```

```bash
cmake --build ./build -j24
```

ERROR:

Start by reproducing the reported build with `cmake -S . -B build -DSYCL_IMPLEMENTATION=DPCPP` and `cmake --build ./build -j24`. Inspect `tests/vector_api/vector_api_bool.cpp` around line 86 and compare the failure under the two mentioned SYCL compilers. Done means the conformance test build completes without this `sycl::vec::value_type` error.

Written by the indexing model from the issue text.