Update dependency org.postgresql:postgresql to v42.5.3 (mulk/mulkcms2!15)

This MR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [org.postgresql:postgresql](https://jdbc.postgresql.org) ([source](https://github.com/pgjdbc/pgjdbc)) | build | patch | `42.5.2` -> `42.5.3` |

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diff --git a/pom.xml b/pom.xml
index c1d97d8..f886c0b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -42,7 +42,7 @@
     <jsoup.version>1.15.3</jsoup.version>
     <kotlin-annotations.version>1.8.0</kotlin-annotations.version>
     <liquibase.version>4.19.0</liquibase.version>
-    <postgresql.version>42.5.2</postgresql.version>
+    <postgresql.version>42.5.3</postgresql.version>
     <rome.version>1.18.0</rome.version>
   </properties>