HTML report fails due to Mixed Content (HTTP Plotly.js blocked on HTTPS pages)

[wjj782600]

The HTML report generated by fastp uses an insecure HTTP link to load Plotly.js (http://opengene.org/plotly-1.2.0.min.js). Modern browsers block this when the HTML is opened via HTTPS, causing charts to break with Uncaught ReferenceError: plotly is not defined.