Update to plotSeuratGenes - #790

[notice] A new release of pip is available: 21.1.1 -> 25.0.1 [notice] To update, run: python3.8 -m pip install --upgrade pip

The macos-latest label will migrate to macOS 15 beginning August 4, 2025. For more information see https://github.com/actions/runner-images/issues/12520