CI: update config & Housekeeping

.github/workflows/main.yml

@@ -10,38 +10,22 @@ jobs:
   build:
     runs-on: ubuntu-latest
 
-    strategy:
-      matrix:
-        node-version:
-          - 18.x
-
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           persist-credentials: false
-      - name: Use Node.js ${{ matrix.node-version }}
-        uses: actions/setup-node@v3
-        with:
-          node-version: ${{ matrix.node-version }}
       - uses: pnpm/action-setup@v2
         name: Install pnpm
         id: pnpm-install
         with:
           version: latest
           run_install: false
-      - name: Get pnpm store directory
-        id: pnpm-cache
-        shell: bash
-        run: |
-          echo "STORE_PATH=$(pnpm store path)" >> $GITHUB_OUTPUT
-      - uses: actions/cache@v3
-        name: Setup pnpm cache
+      - name: Use Node.js
+        uses: actions/setup-node@v3
         with:
-          path: ${{ steps.pnpm-cache.outputs.STORE_PATH }}
-          key: ${{ runner.os }}-pnpm-store-${{ hashFiles('**/pnpm-lock.yaml') }}
-          restore-keys: |
-            ${{ runner.os }}-pnpm-store-
+          node-version-file: '.node-version'
+          cache: 'pnpm'
       - run: pnpm i
       - run: pnpm run build
       - name: Deploy