TNT Run

What's Changed

• Prevented players from joining full arenas and added clear feedback when an arena reaches its player limit.
• Corrected round statistics so late spectators are excluded, disconnecting participants receive the proper result, and win streaks reset after a loss.
• Added persistent storage for longest win streaks across flat-file and MySQL databases.
• Fixed MySQL arena record resets failing because of an invalid database column.
• Preserved players' existing game mode when they open the statistics menu.
• Prevented missing leave-item configuration from interrupting waiting and ending game states.
• Updated the pull request template and Dependabot configuration.
• Bump actions/setup-java from 5.6.0 to 5.7.0 by @dependabot[bot] in #30
• Bump gradle/actions from 6 to 6.2.0 by @dependabot[bot] in #31
• Bump gradle/actions from 6.2.0 to 6.3.0 by @dependabot[bot] in #32

Full Changelog: 2.8.4...2.8.5