fix: upgrade com.amazonaws:aws-lambda-java-events from 3.11.3 to 3.11.6

Snyk has created this PR to upgrade com.amazonaws:aws-lambda-java-events from 3.11.3 to 3.11.6.

See this package in maven:
com.amazonaws:aws-lambda-java-events

See this project in Snyk:
https://app.snyk.io/org/oph-snyk/project/214f5d78-71da-4384-9a8e-1d6a3eaf771e?utm_source=github-cloud-app&utm_medium=referral&page=upgrade-pr

lambdat/tilapaivitys/pom.xml

@@ -30,7 +30,7 @@
         <dependency>
             <groupId>com.amazonaws</groupId>
             <artifactId>aws-lambda-java-events</artifactId>
-            <version>3.11.3</version>
+            <version>3.11.6</version>
         </dependency>
         <dependency>
             <groupId>software.amazon.awssdk</groupId>