fix: type issues with Chart save methods. (#3934)

* Fix unknown dict type issues.

* Ignore some type errors in save.

* Revert typing as None over Undefined.

docs: a HConcatChart -> an HConcatChart (#3917)

fix: preserve polars datetime timezones during serialization (#3922)

Fix wrong tooltip variabel id -> county_id (#3924)

fix: Correct tooltip field for faceted choropleth example (#3920)

* fix: make tooltip reference county_id not id in the faceted choropleth plot

* Revert "fix: make tooltip reference county_id not id in the faceted choropleth plot"

This reverts commit aefb97f.

* fix: make tooltip reference county_id not id in the faceted choropleth example

Version 6.0.0 release

add pypi development release to weekly build (#3910)

extra workflow to test free-threaded python (#3907)

Version 5.5.0 release

version 5.4.1 release