fix: pom.xml to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JAVA-COMMYSQL-9725315

Author: snyk-bot

pom.xml

@@ -52,7 +52,7 @@
         <dependency>
             <groupId>com.mysql</groupId>
             <artifactId>mysql-connector-j</artifactId>
-            <version>9.2.0</version>
+            <version>9.3.0</version>
         </dependency>
         <!--  Connection pool -->
         <dependency>