Update dependency org.postgresql:postgresql to v42.7.8 (#107)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

pom.xml

@@ -18,7 +18,7 @@
     <url>https://github.com/jenkinsci/postgresql-api-plugin</url>
 
     <properties>
-        <revision>42.7.7</revision>
+        <revision>42.7.8</revision>
         <changelist>999999-SNAPSHOT</changelist>
         <gitHubRepo>jenkinsci/postgresql-api-plugin</gitHubRepo>
         <!-- https://www.jenkins.io/doc/developer/plugin-development/choosing-jenkins-baseline/ -->