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

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>