fix(ci): persist Figma image cache when skip-figma-cache is used

Split actions/cache into separate restore/save steps so that
fresh Figma images fetched with skip-figma-cache are saved for
subsequent builds.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: te6-in

.github/workflows/deploy-seed-design-docs-alpha-pages.yml

@@ -43,7 +43,7 @@ jobs:
 
       - name: Restore Figma image cache
         if: ${{ !inputs.skip-figma-cache }}
-        uses: actions/cache@v5
+        uses: actions/cache/restore@v5
         with:
           path: docs/.cache/figma-image
           key: ${{ runner.os }}-figma-images-${{ hashFiles('docs/**/*.mdx') }}
@@ -73,6 +73,12 @@ jobs:
         run: |
           bun run build
 
+      - name: Save Figma image cache
+        uses: actions/cache/save@v5
+        with:
+          path: docs/.cache/figma-image
+          key: ${{ runner.os }}-figma-images-${{ hashFiles('docs/**/*.mdx') }}
+
       - name: Deploy docs at Cloudflare Pages in `seed-design-v3` project (Alpha)
         id: deploy
         uses: cloudflare/wrangler-action@v3

.github/workflows/deploy-seed-design-docs-prod-pages.yml

@@ -45,7 +45,7 @@ jobs:
 
       - name: Restore Figma image cache
         if: ${{ !inputs.skip-figma-cache }}
-        uses: actions/cache@v5
+        uses: actions/cache/restore@v5
         with:
           path: docs/.cache/figma-image
           key: ${{ runner.os }}-figma-images-${{ hashFiles('docs/**/*.mdx') }}
@@ -75,6 +75,12 @@ jobs:
         run: |
           bun run build
 
+      - name: Save Figma image cache
+        uses: actions/cache/save@v5
+        with:
+          path: docs/.cache/figma-image
+          key: ${{ runner.os }}-figma-images-${{ hashFiles('docs/**/*.mdx') }}
+
       - name: Deploy docs at Cloudflare Pages in `seed-design-v3` project (Production)
         run: |
           CLOUDFLARE_ACCOUNT_ID=${{ secrets.CF_ACCOUNT_ID }} \