[SYCL] Fix build with older gcc (#20035)
Works around an internal compiler error that's observed in Jenkins
precommit.
```
sycl/source/detail/program_manager/program_manager.cpp:1845:75: internal compiler error: in replace_placeholders_r, at cp/tree.c:2804
KernelName, CompileTimeKernelInfoTy{detail::string_view(KernelName)});
```
