chore(deps): update dependency org.postgresql:postgresql to v42.7.6

Author: renovate[bot]

pom.xml

@@ -196,7 +196,7 @@
     <dependency>
       <groupId>org.postgresql</groupId>
       <artifactId>postgresql</artifactId>
-      <version>42.7.5</version>
+      <version>42.7.6</version>
       <scope>test</scope>
     </dependency>
     <dependency>