Try to run yotta update for yotta build test

But accept failures in case we're offline
diff --git a/tests/scripts/yotta-build.sh b/tests/scripts/yotta-build.sh
index 59cedf4..2648d3e 100755
--- a/tests/scripts/yotta-build.sh
+++ b/tests/scripts/yotta-build.sh
@@ -6,7 +6,7 @@
 
 yotta/create-module.sh
 cd yotta/module
-# yt update # needs network
+yt update || true # needs network
 
 yotta_build()
 {