Update lint workflow to install pnpm globally

Author: alexey-kichin

.github/workflows/lint.yml

@@ -12,7 +12,8 @@ jobs:
       - uses: actions/setup-node@v4
         with:
           node-version: 20
-          cache: 'pnpm'
+      - name: Install pnpm
+        run: npm install -g pnpm@8
       - name: Install dependencies
         run: pnpm install
       - name: Run linter