chore: remove matrix from workflow

.github/workflows/ci.yaml

@@ -2,9 +2,6 @@ name: Build, Lint and Test
 on: push
 jobs:
   build:
-    strategy:
-      matrix:
-        version: ['lts/*']
     timeout-minutes: 7
     runs-on: ubuntu-latest
     steps:
@@ -14,14 +11,14 @@ jobs:
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: ${{ matrix.version }}
+          node-version: 'lts/*'
 
       - name: Cache node modules
         uses: actions/cache@v4
         with:
           # npm cache files are stored in `~/.npm` on Linux/macOS
           path: ~/.npm
-          key: cache-${{ runner.os }}-${{ matrix.version }}-${{ hashFiles('**/package-lock.json') }}
+          key: cache-${{ runner.os }}-${{ hashFiles('**/package-lock.json') }}
 
       - name: Install dependencies
         run: npm ci