chore(ci): run e2e on isolated spots, cache success

.circleci/config.yml

@@ -267,15 +267,15 @@ jobs:
           aztec_manifest_key: l1-contracts
 
   noir-projects:
-    machine:
-      image: default
-    resource_class: large
+    docker:
+      - image: aztecprotocol/alpine-build-image
+    resource_class: small
     steps:
       - *checkout
       - *setup_env
       - run:
           name: "Build and test"
-          command: build noir-projects
+          command: cond_spot_run_build noir-projects 32
           aztec_manifest_key: noir-projects
 
   yarn-project-pre-join:

.github/cache-success/action.yaml

@@ -0,0 +1,13 @@
+name: 'Cache Successes'
+branding:
+  icon: 'server'
+  color: 'orange'
+inputs:
+  success_key:
+    description: "The key to remember successes based on."
+    required: false
+runs:
+  using: 'node20'
+  main: restore-dist/index.js
+  post: save-dist/index.js
+  post-if: success()