feat(artifacts.yml): add step to setup hugo cache

The commit adds a new step in the workflow to set up a cache for the Hugo static site generator. This cache will store the resources used by the exampleSite, improving the build time by avoiding unnecessary downloads.

.github/workflows/artifacts.yml

@@ -62,6 +62,12 @@ jobs:
           key: ${{ runner.os }}-pnpm-store-${{ hashFiles('**/pnpm-lock.yaml') }}
           restore-keys: ${{ runner.os }}-pnpm-store-
 
+      - name: Setup hugo cache
+        uses: actions/cache@v3
+        with:
+          path: ./exampleSite/resources
+          key: ${{ runner.os }}-hugo-
+
       - name: Install dependencies
         run: pnpm install