chore: bump TechEngine submodule to 71b3543

TechEngineBot · TechEngineBot · commit df12ce127a3e · 2026-06-22T17:04:24.000Z
diff --git a/TechEngine b/TechEngine
@@ -1 +1 @@
-Subproject commit 9900b1b2993ba33115a33b63b1e2897aebf0586d
+Subproject commit 71b354359405f10483ac6a4e8e9a55568b1ed919
