build(deps): bump third_party/prjxray from `326dbda` to `b9ed4b9` (#3454)

Bumps [third_party/prjxray](https://github.com/f4pga/prjxray) from `326dbda` to `b9ed4b9`.
- [Commits](https://github.com/f4pga/prjxray/compare/326dbda44cde26fcdc821ee4cef68a3523cd752f...b9ed4b9a81faccec779e22c5af3aeb90c38bbc66)

---
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 326dbda..b9ed4b9 160000
--- a/third_party/prjxray
+++ b/third_party/prjxray
@@ -1 +1 @@
-Subproject commit 326dbda44cde26fcdc821ee4cef68a3523cd752f
+Subproject commit b9ed4b9a81faccec779e22c5af3aeb90c38bbc66