fix: pom.xml to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JAVA-CHQOSLOGBACK-8539866
- https://snyk.io/vuln/SNYK-JAVA-CHQOSLOGBACK-8539867
- https://snyk.io/vuln/SNYK-JAVA-CHQOSLOGBACK-8539865

Author: snyk-bot

pom.xml

@@ -41,7 +41,7 @@
         <dependency>
             <groupId>ch.qos.logback</groupId>
             <artifactId>logback-classic</artifactId>
-            <version>1.2.3</version>
+            <version>1.5.13</version>
         </dependency>
 
         <!-- JUNIT -->