Bump sims/firesim from b3e76fb to 141bff7

Bumps [sims/firesim](https://github.com/firesim/firesim) from `b3e76fb` to `141bff7`.
- [Release notes](https://github.com/firesim/firesim/releases)
- [Commits](firesim/firesim@b3e76fb...141bff7)

---
updated-dependencies:
- dependency-name: sims/firesim
  dependency-type: direct:production
...

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