ci: re-configure plugin to test out new sonatype google endpoint (#844)

Author: stephaniewang526

pom.xml

@@ -163,6 +163,18 @@
   <build>
     <pluginManagement>
       <plugins>
+        <plugin>
+          <groupId>org.sonatype.plugins</groupId>
+          <artifactId>nexus-staging-maven-plugin</artifactId>
+          <version>1.6.8</version>
+          <extensions>true</extensions>
+          <configuration>
+            <serverId>ossrh</serverId>
+            <nexusUrl>https://google.oss.sonatype.org/</nexusUrl>
+            <autoReleaseAfterClose>false</autoReleaseAfterClose>
+            <stagingProgressTimeoutMinutes>15</stagingProgressTimeoutMinutes>
+          </configuration>
+        </plugin>
         <plugin>
           <groupId>org.apache.maven.plugins</groupId>
           <artifactId>maven-dependency-plugin</artifactId>