build(deps): bump codecov/codecov-action from 5.5.2 to 6.0.0

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 5.5.2 to 6.0.0.
- [Release notes](https://github.com/codecov/codecov-action/releases)
- [Changelog](https://github.com/codecov/codecov-action/blob/main/CHANGELOG.md)
- [Commits](https://github.com/codecov/codecov-action/compare/v5.5.2...v6.0.0)

---
updated-dependencies:
- dependency-name: codecov/codecov-action
  dependency-version: 6.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/coverage.yaml

@@ -38,7 +38,7 @@ jobs:
         run: make coverage
 
       - name: Upload to codecov.io
-        uses: codecov/codecov-action@v5.5.2
+        uses: codecov/codecov-action@v6.0.0
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           files: policies/coverage.json
@@ -65,7 +65,7 @@ jobs:
         run: npm run coverage
 
       - name: Upload to codecov.io
-        uses: codecov/codecov-action@v5.5.2
+        uses: codecov/codecov-action@v6.0.0
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           directory: frontend/coverage/
@@ -132,7 +132,7 @@ jobs:
           grcov . --binary-path ./target/debug/deps/ -s . -t lcov --branch --ignore-not-existing --ignore '../*' --ignore "/*" -o target/coverage/tests.lcov
 
       - name: Upload to codecov.io
-        uses: codecov/codecov-action@v5.5.2
+        uses: codecov/codecov-action@v6.0.0
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           files: target/coverage/*.lcov