Bump codecov/codecov-action from 4 to 5

---
updated-dependencies:
- dependency-name: codecov/codecov-action
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -68,7 +68,7 @@ jobs:
             --output-path ./target/coverage/
 
       - name: Upload coverage data
-        uses: codecov/codecov-action@v4
+        uses: codecov/codecov-action@v5
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           flags: unittests