Bump software/firemarshal from 21119e5 to d5a8b87

Bumps [software/firemarshal](https://github.com/firesim/FireMarshal) from `21119e5` to `d5a8b87`.
- [Release notes](https://github.com/firesim/FireMarshal/releases)
- [Commits](firesim/FireMarshal@21119e5...d5a8b87)

---
updated-dependencies:
- dependency-name: software/firemarshal
  dependency-type: direct:production
...

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