ci: fixes commitlint job

Uses the pre-installed commitlint and config for the commitlint job.

.github/workflows/ci.yml

@@ -32,26 +32,22 @@ jobs:
   commitlint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20.x'
+
+      - name: Cache Node.js modules
+        id: cache-node-modules
+        uses: actions/cache@v4
         with:
-          fetch-depth: 0
-      - name: Install required dependencies
-        run: |
-          apt update
-          apt install -y sudo
-          sudo apt install -y git curl
-          curl -sL https://deb.nodesource.com/setup_14.x | sudo -E bash -
-          sudo DEBIAN_FRONTEND=noninteractive apt install -y nodejs
-      - name: Print versions
-        run: |
-          git --version
-          node --version
-          npm --version
-          npx commitlint --version
-      - name: Install commitlint
-        run: |
-          npm install conventional-changelog-conventionalcommits
-          npm install commitlint@latest
+          path: node_modules
+          key: ${{ runner.os }}-node-modules-${{ hashFiles('**/package-lock.json') }}
+          restore-keys: |
+            ${{ runner.os }}-node-modules-
+
+      - name: Install dependencies
+        run: npm ci
 
       - name: Validate current commit (last commit) with commitlint
         if: github.event_name == 'push'