chore: Restore cypress libraries from cache rather than rebuilding in ci

.github/actions/e2e-setup/action.yml

@@ -11,6 +11,9 @@ inputs:
   libs-cache-key:
     description: 'Cache key for built libraries'
     required: true
+  e2e-cache-key:
+    description: 'Cache key for e2e libraries'
+    required: true
   app-cache-key:
     description: 'Cache key for built app'
     required: true
@@ -37,3 +40,9 @@ runs:
       with:
         cache-key: ${{ inputs.app-cache-key }}
         fail-on-cache-miss: true
+
+    - name: Restore e2e libraries
+      uses: ./.github/actions/restore-e2e-libraries
+      with:
+        cache-key: ${{ inputs.e2e-cache-key }}
+        fail-on-cache-miss: true

.github/actions/restore-e2e-libraries/action.yml

@@ -0,0 +1,20 @@
+name: 'Restore E2E Libraries'
+description: 'Restore built e2e libraries from cache'
+inputs:
+  cache-key:
+    description: 'Cache key for e2e libraries'
+    required: true
+  fail-on-cache-miss:
+    description: 'Whether to fail if cache miss occurs'
+    required: false
+    default: 'true'
+runs:
+  using: 'composite'
+  steps:
+    - name: Restore e2e libraries
+      uses: actions/cache@v4
+      with:
+        path: |
+          projects/storefrontapp-e2e-cypress/node_modules
+        key: nodemodules-${{ inputs.cache-key }}
+        fail-on-cache-miss: ${{ inputs.fail-on-cache-miss }}

.github/workflows/ci-merge-checks.yml

@@ -150,6 +150,7 @@ jobs:
           cache-key-base: ${{ github.event.pull_request.base.sha }}
           libs-cache-key: ${{ github.event.pull_request.head.sha || github.run_id }}
           app-cache-key: ci-b2c-csr-${{ github.event.pull_request.head.sha || github.run_id }}
+          e2e-cache-key: ${{ github.event.pull_request.base.sha || github.event.pull_request.head.sha || github.run_id }}-${{ hashFiles('**/package-lock.json') }}
       - name: Run e2es
         env:
           SPA_ENV: ci,b2c