Update actions/cache action to v5

Author: renovate-bot

.github/workflows/ci.yaml

@@ -9,7 +9,7 @@ jobs:
         with:
           fetch-depth: '0'
           show-progress: 'false'
-      - uses: actions/cache@v4
+      - uses: actions/cache@v5
         with:
           path: /root/.jbang
           key: $-jbang-$