forcing cache update

.github/workflows/build_amplify_swift_for_testing.yml

@@ -36,7 +36,7 @@ jobs:
           key: amplify-packages-${{ hashFiles('Package.resolved') }}
           restore-keys: |
             amplify-packages-
-      - name: Attempt to restore the build cache
+      - name: Restore the build cache
         id: cache-build
         timeout-minutes: 4
         continue-on-error: true
@@ -53,11 +53,10 @@ jobs:
           disable_package_resolution: ${{ steps.cache-packages.outputs.cache-hit }}
           build_for_testing: true
           other_flags: '-derivedDataPath Build -clonedSourcePackagesDirPath ~/Library/Developer/Xcode/DerivedData/Amplify'
-      - name: Save the build cache
-        uses: actions/cache/save@88522ab9f39a2ea568f7027eddc7d8d8bc9d59c8 # v3.3.1
-        with:
-          path: ${{ github.workspace }}/Build
-          key: amplify-iOS-latest-build-main
+      - name: Enforce a cache update
+        run: |
+          CACHE_KEY="amplify-iOS-latest-build-main-$GITHUB_SHA"
+          echo "CACHE_RESULT=${CACHE_KEY}" >> $GITHUB_ENV
 
   build-for-testing-amplify-swift-macOS:
     runs-on: macos-13