perf(ci): optimize React Native E2E by caching node_modules and removing --repo-update (#56)

The CocoaPods --repo-update flag re-downloads the entire spec repo on every
run (~3-8 min). The workflow already caches ~/.cocoapods/repos, so the flag
is unnecessary. Also adds node_modules caching to avoid redundant npm installs.

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

Author: abueide

.github/workflows/e2e-react-native.yml

@@ -35,6 +35,14 @@ jobs:
           cache: 'npm'
           cache-dependency-path: examples/react-native/package-lock.json
 
+      - name: Cache node_modules
+        uses: actions/cache@v5
+        with:
+          path: examples/react-native/node_modules
+          key: ${{ runner.os }}-node-modules-${{ hashFiles('examples/react-native/package-lock.json') }}
+          restore-keys: |
+            ${{ runner.os }}-node-modules-
+
       - name: Enable KVM (Android only)
         if: matrix.platform == 'android'
         run: |

examples/react-native/tests/test-suite-all-e2e.yaml

@@ -128,7 +128,7 @@ processes:
 
       cd ios
       echo "Installing CocoaPods dependencies..."
-      pod install --repo-update
+      pod install
       echo 'Pod install complete'
 
       echo "pass" > "$_step_dir/$_step.status"

examples/react-native/tests/test-suite-ios-e2e.yaml

@@ -80,7 +80,7 @@ processes:
 
       cd ios
       echo "Installing CocoaPods dependencies..."
-      pod install --repo-update
+      pod install
       echo 'Pod install complete'
 
       echo "pass" > "$_step_dir/$_step.status"