downgrade codecov-action to v4

Author: zunda-pixel

.github/workflows/ci.yml

@@ -68,7 +68,7 @@ jobs:
           -ignore-filename-regex="\/Benchmarks\/" \
           -instr-profile .build/debug/codecov/default.profdata > info.lcov
     - name: Upload to codecov.io
-      uses: codecov/codecov-action@v5
+      uses: codecov/codecov-action@v4
       with:
         files: info.lcov
         token: ${{ secrets.CODECOV_TOKEN }}