Bump postgresql from 42.2.9 to 42.2.10

Bumps [postgresql](https://github.com/pgjdbc/pgjdbc) from 42.2.9 to 42.2.10.
- [Release notes](https://github.com/pgjdbc/pgjdbc/releases)
- [Changelog](https://github.com/pgjdbc/pgjdbc/blob/master/CHANGELOG.md)
- [Commits](pgjdbc/pgjdbc@REL42.2.9...REL42.2.10)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

build.gradle

@@ -142,7 +142,7 @@ dependencies {
 
     compile group: 'org.mariadb.jdbc', name: 'mariadb-java-client', version: '2.5.4'
 
-    compile 'org.postgresql:postgresql:42.2.9'
+    compile 'org.postgresql:postgresql:42.2.10'
 
     compile ('com.oracle.ojdbc:ojdbc10:19.3.0.0') {
         // causing module issues