Bump llvm-project from 992dad3 to 5518042

Bumps [llvm-project](https://github.com/Xilinx/llvm-project) from `992dad3` to `5518042`.
- [Commits](Xilinx/llvm-project@992dad3...5518042)

---
updated-dependencies:
- dependency-name: llvm-project
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>