Merge pull request #142 from ContainerSolutions/dependabot/maven/mysql-mysql-connector-java-8.0.21

Bump mysql-connector-java from 8.0.18 to 8.0.21

Author: csviri

samples/mysql-schema/pom.xml

@@ -44,7 +44,7 @@
         <dependency>
             <groupId>mysql</groupId>
             <artifactId>mysql-connector-java</artifactId>
-            <version>8.0.18</version>
+            <version>8.0.21</version>
         </dependency>
         <dependency>
             <groupId>org.apache.commons</groupId>