Update the sonatype repos (#235)

Author: jbachorik

build.gradle

@@ -39,7 +39,8 @@ repositories {
     mavenContent {
       snapshotsOnly()
     }
-    url 'https://oss.sonatype.org/content/repositories/snapshots/'
+    // see https://central.sonatype.org/publish/publish-portal-snapshots/#consuming-via-gradle
+    url 'https://central.sonatype.com/repository/maven-snapshots/'
   }
 }
 
@@ -75,7 +76,14 @@ nexusPublishing {
         password = "admin123"
       }
     } else {
+      // see https://github.com/gradle-nexus/publish-plugin#publishing-to-maven-central-via-sonatype-central
+      // For official documentation:
+      // staging repo publishing https://central.sonatype.org/publish/publish-portal-ossrh-staging-api/#configuration
+      // snapshot publishing https://central.sonatype.org/publish/publish-portal-snapshots/#publishing-via-other-methods
       sonatype {
+        nexusUrl.set(uri("https://ossrh-staging-api.central.sonatype.com/service/local/"))
+        snapshotRepositoryUrl.set(uri("https://central.sonatype.com/repository/maven-snapshots/"))
+
         username = System.getenv("SONATYPE_USERNAME")
         password = System.getenv("SONATYPE_PASSWORD")
       }