chore: update podfiles cache key in CI

Author: chrispader

.github/workflows/build-ios.yml

@@ -56,9 +56,9 @@ jobs:
         uses: actions/cache@v4
         with:
           path: example/ios/Pods
-          key: ${{ runner.os }}-pods-${{ hashFiles('**/Podfile.lock', '**/Gemfile.lock') }}
+          key: pods-${{ runner.os }}-${{ hashFiles('**/Podfile.lock', '**/Gemfile.lock') }}
           restore-keys: |
-            ${{ runner.os }}-pods-
+            pods-${{ runner.os }}
 
       - name: Install Pods
         working-directory: example/ios