Fix uploading coverage to coveralls (#52)

Signed-off-by: Matthew Peveler <matt.peveler@gmail.com>

.github/workflows/ci.yml

@@ -32,8 +32,10 @@ jobs:
       - name: Run tests
         run: npm test
 
-      - name: Upload to coveralls
-        run: |
-          npm install coveralls
-          npm run coveralls
+      - name: Generate coverage report
+        run: npm run coverage
 
+      - name: Upload to coveralls
+        uses: coverallsapp/github-action@v2
+        with:
+          file: ./coverage.lcov

.gitignore

@@ -1,3 +1,4 @@
 /node_modules/
 /coverage/
 /.nyc_output/
+/coverage.lcov

package.json

@@ -13,7 +13,7 @@
   "scripts": {
     "test": "nyc mocha tests/node-test.js",
     "report": "nyc --reporter=html --reporter=text mocha tests/node-test.js",
-    "coveralls": "nyc report --reporter=text-lcov | coveralls",
+    "coverage": "nyc report --reporter=text-lcov > coverage.lcov",
     "build": "uglifyjs src/sha256.js -c -m eval --comments -o build/sha256.min.js"
   },
   "repository": {