Bump llvm-project from c6d34c5 to 2f5bd8b

Bumps [llvm-project](https://github.com/Xilinx/llvm-project) from `c6d34c5` to `2f5bd8b`.
- [Commits](Xilinx/llvm-project@c6d34c5...2f5bd8b)

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

Signed-off-by: dependabot[bot] <support@github.com>