Push Tier 3 job to depend on setup like all the others.

Author: jonathanpallant

.github/workflows/build.yml

@@ -102,8 +102,10 @@ jobs:
           cargo build
 
   # Build the workspace for the target architecture but using nightly to compile libcore
+  # Technically it doens't need 'setup' but it makes the graph look nicer
   build-tier3:
     runs-on: ubuntu-24.04
+    needs: setup
     strategy:
       matrix:
         target: