build(deps): bump third_party/prjxray from `2acd0db` to `8dcc018` (#3262)

Bumps [third_party/prjxray](https://github.com/f4pga/prjxray) from `2acd0db` to `8dcc018`.
- [Commits](https://github.com/f4pga/prjxray/compare/2acd0dbd33a4637577efef6911968f18ea6b1d5e...8dcc018438c5529c5c8983c94070aecdb5838f7d)

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
diff --git a/third_party/prjxray b/third_party/prjxray
index 2acd0db..8dcc018 160000
--- a/third_party/prjxray
+++ b/third_party/prjxray
@@ -1 +1 @@
-Subproject commit 2acd0dbd33a4637577efef6911968f18ea6b1d5e
+Subproject commit 8dcc018438c5529c5c8983c94070aecdb5838f7d