ci: improve CodeQL workflow (#497)

- Set new language `javascript-typescript`
  (see https://docs.github.com/en/code-security/code-scanning/creating-an-advanced-setup-for-code-scanning/customizing-your-advanced-setup-for-code-scanning#changing-the-languages-that-are-analyzed)
- Remove useless Node.js setup

Author: ybiquitous

.github/workflows/codeql.yml

@@ -28,38 +28,12 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        language: ['javascript']
-        node-version: [18]
+        language: ['javascript-typescript']
 
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
 
-      - name: Setup Node.js ${{ matrix.node-version }}
-        uses: actions/setup-node@v4
-        with:
-          node-version: ${{ matrix.node-version }}
-
-      - name: Get npm cache directory
-        id: npm-cache-dir
-        run: |
-          echo "::set-output name=dir::$(npm config get cache)"
-
-      - name: Cache npm cache
-        uses: actions/cache@v4
-        id: npm-cache
-        with:
-          path: ${{ steps.npm-cache-dir.outputs.dir }}
-          key: ${{ runner.os }}-node-${{ hashFiles('**/package-lock.json') }}
-          restore-keys: |
-            ${{ runner.os }}-node-
-
-      - name: Install latest npm
-        run: npm install --global npm@latest
-
-      - name: Install dependencies
-        run: npm ci
-
       - name: Initialize CodeQL
         uses: github/codeql-action/init@v3
         with: