MySQLOO 9.8 Beta2

What's Changed

• Fix cached prepared statements retain old values if passed nil in mysqloolib (#142)
• Added Database:onDisconnect() callback (#135)
• Added options to set database timeout values (#138)
• Fixed query not returning correct results in transaction callbacks (#141)
• Switched to use vcpkg for downloading dependencies, allowing for easily updating libmariadbclient and enhanced security

Full Changelog: 9.7.6...9.8.0-Beta2