add java-spanneradapter to list of modules in root pom

Author: meltsufin

pom.xml

@@ -196,6 +196,7 @@
     <module>java-shopping-merchant-quota</module>
     <module>java-shopping-merchant-reports</module>
     <module>java-shopping-merchant-reviews</module>
+    <module>java-spanneradapter</module>
     <module>java-speech</module>
     <module>java-storage-transfer</module>
     <module>java-storageinsights</module>