feat(api): add v2 apps list endpoint (#4657)

## Summary

Adds apps list to the v2 rest api.

monorepo pr is [here](https://github.com/inngest/monorepo/pull/7952).

## Releaes notes

Adds apps list to the v2 rest api and cli.

`GET /api/v2/apps`

`inngest api GET /api/v2/apps`