Reset nitro-testnode to master pin

MishkaRogachev · MishkaRogachev · commit c855d4ee2809 · 2026-03-18T11:22:33.000+01:00
diff --git a/nitro-testnode b/nitro-testnode
@@ -1 +1 @@
-Subproject commit 3ee0de3b2be7d7c97871661ed92782542c5211c3
+Subproject commit a8f87ada672eaaea6f9e9c508d439dfd85f471b3
