[Java] Rename group id and package name. (#7864)

* Initial

* Change streaming's

* Fix

* Fix

* Fix org_ray

* Fix cpp file name

* Fix streaming

* Fix

* Fix

* Fix testlistening

* Fix missing sth in python

* Fix

* Fix

* Fix SPI

* Fix

* Fix complation

* Fix

* Fix CI

* Fix checkstyle

Fix checkstyle

* Fix streaming tests

* Fix streaming CI

* Fix streaming checkstyle.

* Fix build

* Fix bazel dep

* Fix

* Fix ray checkstyle

* Fix streaming checkstyle

* Fix bazel checkstyle

java/api/pom.xml

@@ -4,7 +4,7 @@
   xmlns="http://maven.apache.org/POM/4.0.0"
   xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <parent>
-    <groupId>org.ray</groupId>
+    <groupId>io.ray</groupId>
     <artifactId>ray-superpom</artifactId>
     <version>0.1-SNAPSHOT</version>
   </parent>