CI: use different actions

Author: marxin

.github/workflows/ci.yml

@@ -35,20 +35,29 @@ jobs:
             ~/.cargo/bin
           key: ${{ runner.os }}-${{ env.MDBOOK_VERSION }}--${{ env.MDBOOK_LINKCHECK2_VERSION }}--${{ env.MDBOOK_TOC_VERSION }}--${{ env.MDBOOK_MERMAID_VERSION }}
 
-      - name: Cache linkcheck
-        uses: actions/cache@v4
+      - name: Restore cached Linkcheck
+        id: cache-linkcheck-restore
+        uses: actions/cache/restore@v4
         with:
           path: |
             ~/book/linkcheck
           key: ${{ runner.os }}-${{ hashFiles('./book/linkcheck') }}
-          save-always: true
 
       - name: Install latest nightly Rust toolchain
         if: steps.mdbook-cache.outputs.cache-hit != 'true'
         run: |
           rustup update nightly
           rustup override set nightly
 
+      - name: Save cached Linkcheck
+        id: cache-linkcheck-save
+        if: always() && steps.cache-linkcheck-restore.outputs.cache-hit != 'true'
+        uses: actions/cache/save@v4
+        with:
+          path: |
+            ~/book/linkcheck
+          key: ${{ runner.os }}-${{ hashFiles('./book/linkcheck') }}
+
       - name: Install Dependencies
         if: steps.mdbook-cache.outputs.cache-hit != 'true'
         run: |