Bump mysql-connector-java from 5.1.21 to 8.0.28 in /spring-mybatis-velocity-tutorial#28

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dependabot/maven/spring-mybatis-velocity-tutorial/mysql-mysql-connector-java-8.0.28rolyer/tutorials:dependabot/maven/spring-mybatis-velocity-tutorial/mysql-mysql-connector-java-8.0.28Copy head branch name to clipboard