Fixing GitHub Actions deprecations and warnings

Author: Silic0nS0ldier

.github/workflows/ci.yml

@@ -10,14 +10,14 @@ jobs:
     test:
         strategy:
             matrix:
-                platform: [ ubuntu-latest, macos-latest, windows-latest ]
+                os: [ ubuntu-latest, macos-latest, windows-latest ]
                 node-version: [ 10.x, 12.x, 13.x ]
-        runs-on: ${{ matrix.platform }}
+        runs-on: ${{ matrix.os }}
         steps:
         - uses: actions/checkout@v1
         - uses: actions/setup-node@v1
           with:
-            version: ${{ matrix.node-version }}
+            node-version: ${{ matrix.node-version }}
         - run: npm ci
         - run: ./node_modules/.bin/nyc --reporter=lcovonly npm test
         - uses: codecov/codecov-action@v1