chore(ci): run l1-contracts CI in parallel with build step (#10024)

There's no real reason to wait until the `build` step has completed to
run the `l1-contracts` tests afaict as the `build` step doesn't impact
`l1-contracts`.

.github/workflows/ci.yml

@@ -752,7 +752,7 @@ jobs:
           path: network-test.log
 
   l1-contracts-test:
-    needs: [build, configure]
+    needs: [build-images, configure]
     runs-on: ${{ needs.configure.outputs.username }}-x86
     if: needs.configure.outputs.l1-contracts == 'true'
     steps: