Add Sonatype snapshots repository.

Author: rlubke

users/pom.xml

@@ -43,6 +43,16 @@
             <id>central</id>
             <url>https://repo.maven.apache.org/maven2</url>
         </repository>
+        <repository>
+            <id>sonatype-snapshots</id>
+            <url>https://oss.sonatype.org/content/repositories/snapshots</url>
+            <releases>
+                <enabled>false</enabled>
+            </releases>
+            <snapshots>
+                <enabled>true</enabled>
+            </snapshots>
+        </repository>
         <repository>
             <id>sonatype-staging</id>
             <url>https://oss.sonatype.org/content/groups/staging/</url>