[clang-tools-extra] [clangd] Allow --query-driver to match a dot-normalized form of the path (PR #66757)

[kadir çetinkaya via cfe-commits]

kadircet wrote:

thanks, no need for tests, the logic is rather trivial (might be worth mentioning in change notes though, so that we can build them up more naturally for the future and encourage others to do so as well)

https://github.com/llvm/llvm-project/pull/66757