chore: add ci caching

Author: saleel

.github/workflows/e2e.yml

@@ -12,37 +12,35 @@ jobs:
     - uses: actions/checkout@v4
 
     - uses: actions/setup-node@v4
+      working-directory: ./app
       with:
         node-version: lts/*
+        cache: 'yarn'
+
+    - name: Install Playwright Browsers
+      working-directory: ./app
+      run: yarn playwright install --with-deps
 
     - name: Set up Docker
       uses: docker/setup-buildx-action@v2
 
     - name: Install Aztec CLI
       run: |
         curl -s https://install.aztec.network > tmp.sh
-        bash tmp.sh <<< yes "yes"
+        bash tmp.sh <<< yes "yes" &
+        aztec-up 0.87.2 
 
     - name: Update path
       run: echo "/home/runner/.aztec/bin" >> $GITHUB_PATH
 
-    - name: Set Aztec version and start sandbox
+    - name: Start sandbox
       run: |
-        aztec-up 0.87.2 
-        aztec start --sandbox &
+        aztec start --sandbox
 
     - name: Compile contracts
       run: script -e -c "${AZTEC_NARGO:-aztec-nargo} compile"
       working-directory: ./contracts
 
-    - name: Install dependencies
-      working-directory: ./app
-      run: npm install -g yarn && yarn
-
-    - name: Install Playwright Browsers
-      working-directory: ./app
-      run: yarn playwright install --with-deps
-
     - name: Deploy contracts
       working-directory: ./app
       run: yarn deploy-contracts