fix(workflow): turn cache on

.gitea/workflows/workflow.yml

@@ -36,6 +36,16 @@ jobs:
       #     path: ${{ github.workspace }}/.yarn/cache
       #     key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
       #     restore-keys: ${{ runner.os }}-yarn-
+      #
+      - name: Persistent Yarn Cache
+        uses: actions/cache@v4
+        id: yarn-cache
+        with:
+          # In Yarn Berry, the cache is local to the project
+          path: .yarn/cache
+          # Ensure a clean key without hidden newline characters
+          key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
+          restore-keys: ${{ runner.os }}-yarn-
 
       - name: Install dependencies
         # --immutable ensures the lockfile isn't changed (replaces --frozen-lockfile)