CI: update coverallsapp/github-action to v2

Author: XhmikosR

.github/workflows/test.yml

@@ -64,7 +64,7 @@ jobs:
         if: startsWith(matrix.os, 'windows')
 
       - name: Run Coveralls
-        uses: coverallsapp/github-action@v1.2.4
+        uses: coverallsapp/github-action@v2
         if: startsWith(matrix.os, 'ubuntu') && matrix.node == env.NODE_COV
         with:
           github-token: "${{ secrets.GITHUB_TOKEN }}"