chore: Update nexusUrl to staging for staging releases

Author: monperrus

pom.xml

@@ -171,7 +171,7 @@
         <extensions>true</extensions>
         <configuration>
           <serverId>ossrh</serverId>
-          <nexusUrl>https://oss.sonatype.org/</nexusUrl>
+          <nexusUrl>https://ossrh-staging-api.central.sonatype.com/</nexusUrl>
           <autoReleaseAfterClose>true</autoReleaseAfterClose>
         </configuration>
       </plugin>