Fix github actions deploy configuration

.github/workflows/deploy.yml

@@ -15,13 +15,9 @@ jobs:
       contents: write
     runs-on: ubuntu-latest
 
-    concurrency:
-      group: gh-pages-${{ github.ref }}
-      cancel-in-progress: true
-
     strategy:
       matrix:
-        node-version: [14.x, 16.x, 18.x]
+        node-version: [18.x]
         # See supported Node.js release schedule at https://nodejs.org/en/about/releases/
 
     steps:
@@ -34,8 +30,6 @@ jobs:
       - run: npm ci
       - run: npm run build --if-present
       - run: npm test
-      - name: Clean old files
-        run: rm -rf node_modules dist
 
       - name: Deploy with gh-pages
         run: |