Bump koa from 2.5.1 to 3.0.1 in /packages/corewar-public/server#111

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dependabot/npm_and_yarn/packages/corewar-public/server/koa-3.0.1corewar/corewar.io:dependabot/npm_and_yarn/packages/corewar-public/server/koa-3.0.1Copy head branch name to clipboard