chore: fix pr workflow

Author: LGLabGreg

.github/workflows/pr.yml

@@ -17,10 +17,24 @@ jobs:
         uses: actions/setup-node@v4
         with:
           node-version: '20.x'
-          cache: 'pnpm'
 
       - name: Install pnpm
-        run: npm install -g pnpm
+        uses: pnpm/action-setup@v3
+        with:
+          version: 10
+
+      - name: Get pnpm store directory
+        shell: bash
+        run: |
+          echo "STORE_PATH=$(pnpm store path --silent)" >> $GITHUB_ENV
+
+      - uses: actions/cache@v4
+        name: Setup pnpm cache
+        with:
+          path: ${{ env.STORE_PATH }}
+          key: ${{ runner.os }}-pnpm-store-${{ hashFiles('**/pnpm-lock.yaml') }}
+          restore-keys: |
+            ${{ runner.os }}-pnpm-store-
 
       - name: Install dependencies
         run: pnpm install