dependencies: update nwsapi to 2.2.20

Author: striezel

changelog.md

@@ -10,6 +10,11 @@ Since [Plotly.js](https://plotly.com/javascript/) is the main dependency of this
 application, major version changes in Plotly.js will also trigger a major
 version change in this application.
 
+## Version 6.0.? (2025-04-??)
+
+* __[maintenance]__
+Update dependency `nwsapi` to 2.2.20.
+
 ## Version 6.0.5 (2025-03-17)
 
 * __[maintenance]__