chore(deps): update actions/cache action to v4.3.0

Author: my-renovate[bot]

.github/workflows/pr-slack-notification.yml

@@ -47,7 +47,7 @@ jobs:
           echo "${TS}" > slack-message-timestamp.txt
 
       - name: Cache slack message timestamp
-        uses: actions/cache/save@0400d5f644dc74513175e3cd8d07132dd4860809 # v4.2.4
+        uses: actions/cache/save@0057852bfaa89a56745cba8c7296529d2fc39830 # v4.3.0
         with:
           path: slack-message-timestamp.txt
           key: slack-message-timestamp-${{ github.event.pull_request.html_url }}-${{ steps.message.outputs.ts }}