ci: remove Coveralls GitHub Action from npm-test workflow

Author: ignlg

.github/workflows/npm-test.yml

@@ -50,9 +50,6 @@ jobs:
         run: yarn --immutable
       - name: Run tests
         run: npm run test
-      - name: Coveralls GitHub Action
-        uses: coverallsapp/github-action@v2
-
 
   build:
     runs-on: ubuntu-latest