fix(ci): Update Sonatype OSSRH URL to Central Portal staging API (#457)

The legacy aws.oss.sonatype.org endpoint has been shut down (OSSRH EOL
June 2025). Update nexusUrl to use the Central Portal OSSRH Staging API
compatibility shim at ossrh-staging-api.central.sonatype.com.

Note: GitHub secrets SONATYPE_USERNAME and SONATYPE_PASSWORD must be
updated with a Central Portal user token generated at
https://central.sonatype.com/account

Author: thehungryturnip

pom.xml

@@ -501,7 +501,7 @@
                         <extensions>true</extensions>
                         <configuration>
                             <serverId>sonatype-nexus-staging</serverId>
-                            <nexusUrl>https://aws.oss.sonatype.org</nexusUrl>
+                            <nexusUrl>https://ossrh-staging-api.central.sonatype.com/service/local/</nexusUrl>
                         </configuration>
                     </plugin>
                 </plugins>