feat: `createNodeMiddleware` export (octokit#2120)

fix(typescript): avoid the `void` (octokit#2116)

fix(README): correct bad references (octokit#2096)

fix: quick typo on the README file (octokit#2092)

fix(README): overall improvements (octokit#2080)

fix: update all dependencies to latest

fix(deps): update dependency @octokit/app to v12

Co-authored-by: Renovate Bot <bot@renovateapp.com>

fix(README): missing `.rest` in app example (octokit#26)

feat: initial version (octokit#22)

fix(README): no more known issues in `octokit@beta`