Bump tools/OpenROAD from 0064f2d to 771bf8e

Bumps [tools/OpenROAD](https://github.com/The-OpenROAD-Project/OpenROAD) from `0064f2d` to `771bf8e`.
- [Release notes](https://github.com/The-OpenROAD-Project/OpenROAD/releases)
- [Commits](The-OpenROAD-Project/OpenROAD@0064f2d...771bf8e)

---
updated-dependencies:
- dependency-name: tools/OpenROAD
  dependency-version: 771bf8ec4056c913d016e9384f802237f07ae33c
  dependency-type: direct:production
...

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

Author: dependabot[bot]