deps: update codecov/codecov-action action to v5 (#557)

Author: renovate[bot]

.github/workflows/ci.yml

@@ -37,7 +37,7 @@ jobs:
 
       - run: go test -coverprofile=coverage.txt -v -race ./...
 
-      - uses: codecov/codecov-action@v4
+      - uses: codecov/codecov-action@v5
         if: >
           !startsWith(github.head_ref, 'renovate/') &&
           !startsWith(github.head_ref, 'release-please--')