Updated OSSRH(Nexus repository) to Central Publisher Portal to upload in maven repository

As of June 30, 2025 OSSRH has reached end of life and has been shut down. All OSSRH namespaces have been migrated to Central Publisher Portal.
https://central.sonatype.org/pages/ossrh-eol/#process-to-migrate

Author: mandlil

java/pom.xml

@@ -7,12 +7,6 @@
   <packaging>pom</packaging>
   <url>https://github.com/google/libphonenumber/</url>
 
-  <parent>
-    <groupId>org.sonatype.oss</groupId>
-    <artifactId>oss-parent</artifactId>
-    <version>7</version>
-  </parent>
-
   <description>
     Google's common Java library for parsing, formatting, storing and validating
     international phone numbers.
@@ -173,15 +167,12 @@
         </configuration>
       </plugin>
       <plugin>
-        <groupId>org.sonatype.plugins</groupId>
-        <artifactId>nexus-staging-maven-plugin</artifactId>
-        <version>1.6.13</version>
+        <groupId>org.sonatype.central</groupId>
+        <artifactId>central-publishing-maven-plugin</artifactId>
+        <version>0.8.0</version>
         <extensions>true</extensions>
         <configuration>
-          <serverId>sonatype-nexus-staging</serverId>
-          <nexusUrl>https://oss.sonatype.org/</nexusUrl>
-          <stagingProfileId>23ed8fbc71e875</stagingProfileId>
-          <skipStagingRepositoryClose>true</skipStagingRepositoryClose>
+          <publishingServerId>central</publishingServerId>
         </configuration>
       </plugin>
     </plugins>