fix(deps): update dependency org.postgresql:postgresql to v42.7.4

Author: renovate[bot]

pom.xml

@@ -42,7 +42,7 @@
 		<dependency>
 		    <groupId>org.postgresql</groupId>
 		    <artifactId>postgresql</artifactId>
-		    <version>42.7.3</version>
+		    <version>42.7.4</version>
 		</dependency>
 		<dependency>
 			<groupId>org.projectlombok</groupId>