dependency: Update dependency org.mariadb.jdbc:mariadb-java-client to v3.5.6

Author: renovate[bot]

buildSrc/src/main/kotlin/Versions.kt

@@ -17,7 +17,7 @@ object Versions {
 
     const val PLACEHOLDER_API = "2.11.6"
 
-    const val MARIA_DB = "3.5.1"
+    const val MARIA_DB = "3.5.6"
     const val POSTGRESQL = "42.7.5"
     const val H2 = "2.3.232"
     const val ORMLITE = "6.1"