Merge pull request #73 from docker/dependabot/maven/sparkjava-mysql/backend/mysql-mysql-connector-java-8.0.16

Bump mysql-connector-java from 8.0.11 to 8.0.16 in /sparkjava-mysql/backend

sparkjava-mysql/backend/pom.xml

@@ -46,7 +46,7 @@
         <dependency>
             <groupId>mysql</groupId>
             <artifactId>mysql-connector-java</artifactId>
-            <version>8.0.11</version>
+            <version>8.0.16</version>
         </dependency>
         <dependency>
             <groupId>com.google.code.gson</groupId>