Merge pull request #30 from iterate-ch/dependabot/maven/org.testcontainers-postgresql-1.21.4

Bump org.testcontainers:postgresql from 1.21.3 to 1.21.4

Author: dkocher

pom.xml

@@ -348,7 +348,7 @@
         <dependency>
             <groupId>org.testcontainers</groupId>
             <artifactId>postgresql</artifactId>
-            <version>1.21.3</version>
+            <version>1.21.4</version>
             <scope>test</scope>
         </dependency>
     </dependencies>