Update codecov/codecov-action action to v2 (#5)

Co-authored-by: Renovate Bot <bot@renovateapp.com>

Author: renovate[bot]

.github/workflows/ci-dev.yml

@@ -48,7 +48,7 @@ jobs:
         run: yarn test
 
       - name: Coverage
-        uses: codecov/codecov-action@v1
+        uses: codecov/codecov-action@v2
 
       - name: Build
         run: yarn build

.github/workflows/ci.yml

@@ -48,7 +48,7 @@ jobs:
         run: yarn test
 
       - name: Coverage
-        uses: codecov/codecov-action@v1
+        uses: codecov/codecov-action@v2
 
       - name: Build
         run: yarn build