[internal] Update GitHub Actions workflow files (#347)

Author: pulumi-bot

.github/workflows/build_sdk.yml

@@ -49,7 +49,7 @@ jobs:
         name: Fetch secrets from ESC
         uses: pulumi/esc-action@9eb774255b1a4afb7855678ae8d4a77359da0d9b
       - name: Cache examples generation
-        uses: actions/cache@0400d5f644dc74513175e3cd8d07132dd4860809 # v4
+        uses: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830 # v4
         with:
           path: |
             .pulumi/examples-cache

.github/workflows/prerequisites.yml

@@ -55,7 +55,7 @@ jobs:
         major-version: 0
         set-env: 'PROVIDER_VERSION'
     - name: Cache examples generation
-      uses: actions/cache@0400d5f644dc74513175e3cd8d07132dd4860809 # v4
+      uses: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830 # v4
       with:
         path: |
           .pulumi/examples-cache