[clang-tools-extra] [clangd] fix wrong resouce-dir (PR #203332)

[Nathan Ridge via cfe-commits]

HighCommander4 wrote:

> In this case , the resource-dir generated from clangd , is pointed to a **directory not exists**

That's unexpected, and may indicate an issue with how clangd is installed.

Can you say more about how you installed clangd on your system? There may be a bug in the script that packaged it, in which case that bug should be addressed instead.

https://github.com/llvm/llvm-project/pull/203332