fix: pom.xml to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JAVA-COMGOOGLEPROTOBUF-8055227

Author: snyk-bot

pom.xml

@@ -237,7 +237,7 @@
 			<!-- GPL -->
 			<groupId>com.mysql</groupId>
 			<artifactId>mysql-connector-j</artifactId>
-			<version>8.3.0</version>
+			<version>9.2.0</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>