Update setting.xml to include maven credentials needed for deploy

Author: aozarov

settings.xml

@@ -13,6 +13,16 @@
       <username>${env.CI_DEPLOY_USERNAME}</username>
       <password>${env.CI_DEPLOY_PASSWORD}</password>
     </server>
+    <server>
+      <id>sonatype-nexus-snapshots</id>
+      <username>${env.MVN_DEPLOY_USERNAME}</username>
+      <password>${env.MVN_DEPLOY_PASSWORD}</password>
+    </server>
+    <server>
+      <id>sonatype-nexus-staging</id>
+      <username>${env.MVN_DEPLOY_USERNAME}</username>
+      <password>${env.MVN_DEPLOY_PASSWORD}</password>
+    </server>
   </servers>
   <mirrors/>
   <proxies/>