Fix pnpm setup in CI

Author: deanc

.github/workflows/ci.yml

@@ -17,16 +17,28 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
 
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v4
+        with:
+          version: "10"
+          run_install: false
+
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
           node-version: ${{ matrix.node }}
-          cache: pnpm
 
-      - name: Setup pnpm
-        uses: pnpm/action-setup@v4
+      - name: Get pnpm store path
+        id: pnpm-store
+        run: echo "STORE_PATH=$(pnpm store path --silent)" >> $GITHUB_OUTPUT
+
+      - name: Cache pnpm store
+        uses: actions/cache@v4
         with:
-          version: "10"
+          path: ${{ steps.pnpm-store.outputs.STORE_PATH }}
+          key: ${{ runner.os }}-pnpm-${{ matrix.node }}-${{ hashFiles('pnpm-lock.yaml') }}
+          restore-keys: |
+            ${{ runner.os }}-pnpm-${{ matrix.node }}-
 
       - name: Install
         run: pnpm install --frozen-lockfile