chore: bump lib/pdp to v3.1.0 tag

rjan90 · rjan90 · commit 4caa45395370 · 2025-10-27T11:48:25.000+01:00
diff --git a/service_contracts/lib/pdp b/service_contracts/lib/pdp
@@ -1 +1 @@
-Subproject commit 856fd2f9be39bb3bb8ddbebd6599f81952fac7de
+Subproject commit fd1b650defa97e4f86a638328553d84d61ea26e0
