fix: pom.xml to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JAVA-ORGSPRINGFRAMEWORKBOOT-5564390

Author: snyk-bot

pom.xml

@@ -69,7 +69,7 @@
         <dependency>
             <groupId>org.springdoc</groupId>
             <artifactId>springdoc-openapi-ui</artifactId>
-            <version>1.2.33</version>
+            <version>1.3.8</version>
         </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>