build(deps): bump actions/cache from 4 to 5 (#464)

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/url-check-on-change.yml

@@ -21,7 +21,7 @@ jobs:
           persist-credentials: false
 
       - name: Restore lychee cache
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: .lycheecache
           key: cache-lychee-${{ github.sha }}

.github/workflows/url-check-periodic.yml

@@ -17,7 +17,7 @@ jobs:
           persist-credentials: false
 
       - name: Restore lychee cache
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: .lycheecache
           key: cache-lychee-${{ github.sha }}