add missing @types/* packages for TypeScript support (#1373)

Add type definitions for dependencies that were missing their corresponding `@types/*` packages:

- @types/base-64
- @types/body-parser
- @types/cookie-parser
- @types/cors
- @types/debug
- @types/he
- @types/js-yaml
- @types/luxon
- @types/morgan
- @types/passport
- @types/passport-github
- @types/promise-retry
- @types/recursive-readdir
- @types/semver
- @types/swagger-ui-express
- @types/tmp

Author: JamieMagee