chore(deps): update codecov/codecov-action action to v6

Author: renovate[bot]

.github/workflows/main.yaml

@@ -24,7 +24,7 @@ jobs:
       - run: npm ci
       - run: npm run lint
       - run: npm test
-      - uses: codecov/codecov-action@v5
+      - uses: codecov/codecov-action@v6
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
       - name: Semantic Release (Dry Run)