Update main.yml

.github/workflows/main.yml

@@ -1,9 +1,25 @@
 name: Workflow for Codecov Action
-on: [push, pull_request]
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
 jobs:
   run:
     runs-on: [ubuntu-latest]
     steps:
-      - name: Upload coverage reports to Codecov
-        uses: codecov/codecov-action@v3
-
+      - uses: actions/checkout@v2
+      - name: Install Flutter
+        uses: subosito/[email protected]
+        with:
+          flutter-version: '3.7.0'
+      - name: Install Flutter dependencies
+        run: flutter pub get
+      - name: Install coverage tools
+        run: flutter pub global activate coverage
+      - name: format coverage
+        run: $HOME/.pub-cache/bin/format_coverage --lcov --in=coverage --out=coverage.lcov --packages=.packages --report-on=lib
+      - uses: codecov/codecov-action@v3
+        with:
+          files: coverage.lcov
+          verbose: true