refactor: update dependency groupId to use io.github namespace

Author: Pinont

README.md

@@ -49,7 +49,7 @@ If the library is published to GitHub Packages, add the GitHub repository and de
 
   <dependencies>
     <dependency>
-	    <groupId>com.github.pinont</groupId>
+	    <groupId>io.github.pinont</groupId>
 	    <artifactId>SingularityLib</artifactId>
 	    <version>Tag</version>
 	</dependency>