Change groupId to prepare for upload to Central

It's much easier to get your package verified on Central if it uses
a GitHub groupId. Otherwise you need to use DNS verification! This
changes the groupId:

- from: org.cgiar.cgspace.ctask
- to: io.github.ilri.cgspace

Also the package changed as well.

See: https://central.sonatype.org/pages/producers.html

pom.xml

@@ -4,7 +4,7 @@
   xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
   <modelVersion>4.0.0</modelVersion>
 
-  <groupId>org.cgiar.cgspace.ctasks</groupId>
+  <groupId>io.github.ilri.cgspace</groupId>
   <artifactId>dspace-curation-tasks</artifactId>
   <version>1.0-SNAPSHOT</version>