Bump mysql-connector-java from 8.0.16 to 8.0.28 in /book-server#3

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masterneverth/Moving:masterfrom

dependabot/maven/book-server/mysql-mysql-connector-java-8.0.28neverth/Moving:dependabot/maven/book-server/mysql-mysql-connector-java-8.0.28Copy head branch name to clipboard