Update Sonatype destination URLs as old ones have been deprecated

See: https://central.sonatype.org/publish/publish-portal-ossrh-staging-api/

Author: andrew-signal

RELEASE_NOTES.md

@@ -1,2 +1,3 @@
 v0.76.3
 
+- Update Java publishing job to use new endpoint for Maven Central uploads.

java/build.gradle

@@ -130,6 +130,10 @@ nexusPublishing {
         sonatype {
             username = project.findProperty('sonatypeUsername') ?: ""
             password = project.findProperty('sonatypePassword') ?: ""
+            // This is the recommended configuration from the README for the plugin we use, gradle-nexus/publish-plugin.
+            // The URLs are from https://central.sonatype.org/publish/publish-portal-ossrh-staging-api/#configuration
+            nexusUrl.set(uri("https://ossrh-staging-api.central.sonatype.com/service/local/"))
+            snapshotRepositoryUrl.set(uri("https://central.sonatype.com/repository/maven-snapshots/"))
         }
     }
 }