build(deps): bump third_party/prjxray from 5c0ef1c to a1f3ae2 (#3830

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Bumps [third_party/prjxray](https://github.com/f4pga/prjxray) from `5c0ef1c` to `a1f3ae2`.
- [Commits](f4pga/prjxray@5c0ef1c...a1f3ae2)

---
updated-dependencies:
- dependency-name: third_party/prjxray
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>