Added missing distributionManagement tag.

.circleci/.maven.xml

@@ -1,7 +1,7 @@
 <settings xmlns="http://maven.apache.org/SETTINGS/1.0.0">
     <servers>
         <server>
-            <id>rso</id>
+            <id>ossrh</id>
             <username>${env.SONATYPE_USERNAME}</username>
             <password>${env.SONATYPE_PASSWORD}</password>
         </server>

pom.xml

@@ -22,6 +22,17 @@
         <tag>HEAD</tag>
     </scm>
 
+    <distributionManagement>
+        <snapshotRepository>
+            <id>ossrh</id>
+            <url>https://oss.sonatype.org/content/repositories/snapshots</url>
+        </snapshotRepository>
+        <repository>
+            <id>ossrh</id>
+            <url>https://oss.sonatype.org/service/local/staging/deploy/maven2/</url>
+        </repository>
+    </distributionManagement>
+
     <licenses>
         <license>
             <name>MIT License</name>