🩹 Fix broken star history chart (#527)

The star history chart in the README is currently broken because its
data source relies on the GitHub stargazer API, which no longer works.
To get the chart rendering again, this switches to a working star
history service. No other changes are made.

Author: SnaveSutit

README.md

@@ -99,10 +99,10 @@ Contributions are always welcome! Check out [CONTRIBUTING.md](CONTRIBUTING.md) f
 
 # ⭐ Star History
 
-<a href="https://star-history.com/#animated-java/animated-java&Date" alt="test">
+<a href="https://star-history.dera.page/#animated-java/animated-java&Date" alt="test">
 	<picture>
-		<source media="(prefers-color-scheme: dark)" srcset="https://api.star-history.com/svg?repos=animated-java/animated-java&type=Date&theme=dark" />
-		<source media="(prefers-color-scheme: light)" srcset="https://api.star-history.com/svg?repos=animated-java/animated-java&type=Date" />
-		<img alt="Star History Chart" src="https://api.star-history.com/svg?repos=animated-java/animated-java&type=Date" />
+		<source media="(prefers-color-scheme: dark)" srcset="https://star-history.dera.page/svg?repos=animated-java/animated-java&type=Date&theme=dark" />
+		<source media="(prefers-color-scheme: light)" srcset="https://star-history.dera.page/svg?repos=animated-java/animated-java&type=Date" />
+		<img alt="Star History Chart" src="https://star-history.dera.page/svg?repos=animated-java/animated-java&type=Date" />
 	</picture>
 </a>