feat: update actions to use pnpm and Node 22

.github/actions/install/action.yml

@@ -4,24 +4,18 @@ description: Installs Node.js & package dependencies
 runs:
   using: composite
   steps:
-    - name: Setup Node
-      uses: actions/setup-node@v3
+    - name: Setup pnpm
+      uses: pnpm/action-setup@v4
       with:
-        node-version: 18
+        version: 10
+        run_install: false
 
-    - name: Get yarn cache directory path
-      shell: bash
-      id: yarn-cache-dir-path
-      run: echo "dir=$(yarn cache dir)" >> $GITHUB_OUTPUT
-
-    - uses: actions/cache@v3
-      id: yarn-cache
+    - name: Setup Node.js
+      uses: actions/setup-node@v4
       with:
-        path: ${{ steps.yarn-cache-dir-path.outputs.dir }}
-        key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
-        restore-keys: |
-          ${{ runner.os }}-yarn-
+        node-version: 22
+        cache: 'pnpm'
 
-    - name: Install Packages
+    - name: Install dependencies
       shell: bash
-      run: yarn install --frozen-lockfile --non-interactive --ignore-scripts
+      run: pnpm install --frozen-lockfile

.github/workflows/checks.yml

@@ -10,22 +10,22 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Install dependencies
         uses: ./.github/actions/install
 
       - name: Run check
-        run: yarn astro:check
+        run: pnpm astro:check
   eslint:
     name: Run ESLint
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Install dependencies
         uses: ./.github/actions/install
 
       - name: Run check
-        run: yarn eslint
+        run: pnpm eslint