chore(deps): bump @koa/router from 15.0.0 to 15.1.1 in /examples/custom-receiver#2747

dependabot[bot] wants to merge 1 commit intomainslackapi/bolt-js:mainfrom

dependabot/npm_and_yarn/examples/custom-receiver/koa/router-15.1.1slackapi/bolt-js:dependabot/npm_and_yarn/examples/custom-receiver/koa/router-15.1.1Copy head branch name to clipboard