Update codecov/codecov-action action to v7

Author: renovate[bot]

.github/workflows/main.yml

@@ -52,7 +52,7 @@ jobs:
       - name: Test
         run: make report
       - name: Report
-        uses: codecov/codecov-action@v6.0.2
+        uses: codecov/codecov-action@v7.0.0
         with:
           files: ./build/reports/kover/result.xml