fix: use star-history instead of starart.cc

resolve sherlock-project#2008

README.md

@@ -170,9 +170,13 @@ If some sites are failing due to connection problems (site is down, in maintenan
 you can exclude them from tests by creating a `tests/.excluded_sites` file with a
 list of sites to ignore (one site name per line).
 
-## Stargazers over time
+## Star History
 
-[![Stargazers over time](https://starchart.cc/sherlock-project/sherlock.svg)](https://starchart.cc/sherlock-project/sherlock)
+<picture>
+  <source media="(prefers-color-scheme: dark)" srcset="https://api.star-history.com/svg?repos=sherlock-project/sherlock&type=Date&theme=dark" />
+  <source media="(prefers-color-scheme: light)" srcset="https://api.star-history.com/svg?repos=sherlock-project/sherlock&type=Date" />
+  <img alt="Sherlock Project Star History Chart" src="https://api.star-history.com/svg?repos=sherlock-project/sherlock&type=Date" />
+</picture>
 
 ## License