[SYCL] Fix CTAD-related issue with std::lock_guard

[dm-vodopyanov]

This patch fixes post-commit failure introduced in #7468:

/Users/runner/work/llvm/llvm/src/sycl/source/detail/program_manager/program_manager.cpp:1324:9: error: 'lock_guard' may not intend to support class template argument deduction [-Werror,-Wctad-maybe-unsupported]
        std::lock_guard HostPipesGuard(m_HostPipesMutex);
        ^

[steffenlarsen]

Failed Tests (1):
SYCL :: AtomicRef/atomic_memory_order_acq_rel.cpp
Being disabled in #8885.

Failure in Jenkins precommit is an infrastructure problem and is unrelated.