ci: use access token for DockerHub login instead of password

Author: mcserep

.github/workflows/ci.yml

@@ -437,10 +437,10 @@ jobs:
           docker build -t codecompass:web     -t modelcpp/codecompass:${BRANCH_PREFIX}web-pgsql      --file docker/web/Dockerfile --no-cache .
 
       - name: Login to DockerHub
-        uses: docker/login-action@v1
+        uses: docker/login-action@v2
         with:
-          username: ${{ secrets.DOCKER_USERNAME }}
-          password: ${{ secrets.DOCKER_PASSWORD }}
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
 
       - name: Push images
         run: |